concrete mix ratio using ballast

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When mixed concrete hardens, it gives a stone-like finish that is extremely useful in construction. We show you how to mix concrete. This tells the mixer that they need to add 1 part cement powder, 2 parts sand, and 3 parts aggregate in order to create the desired concrete consistency. Answered 10th Jun 2019 Like 0. This strength is measured in megapascals (MPa) or pounds per square inch (psi). The right composition of your concrete with the materials in the recommended ratio is instrumental in having good concrete. Concrete is created using several ingredients. "@type": "Answer", To produce a 3000 psi cubic yard of concrete (27 cubic feet) the concrete mixture ratio is: 517 pounds of cement or (234kg) 1560 pounds of sand or (707kg) 1600 pounds of stone or (725kg) 32 - 34 gallons of water or (132L) This mixing ratio will give you a concrete mix that is strong, durable, and good for most concrete projects. This process is called bleeding, and it makes the concrete weaker than it should be. Water and any additional additives are also used to create the final mixture ready for pouring. For a low-grade concrete with 10MPa strength, the perfect ratio should be 1:3:6. These Concrete Calculators work out the required cement and all-in ballast or cement, sharp sand and gravel required to complete } In this article, we will enlighten you about the correct concrete mix ratio using ballast. You will notice when the concrete strength increases using this method. Our mix-on-site concrete calculation is based on batching by volume (Large construction sites employ batching by weight which is more exact). Both of these concrete calculators make an allowance for the fact that material losses volume after being mixed to make concrete. So 1.54 Cum of dry materials (cement, sand and aggregate) is required to produce 1 Cum of concrete Volume of Cement required = 1/ (1+2+4) X 1.54 = 1/7 X 1.54 = 0.22 Cum "@type": "FAQPage", Ballast for concrete comprises of coarse materials like sharp sand, gravel, and limestone. Smaller batches can easily be created by scaling down the ingredients and using a bucket or drum for mixing, the concrete typically should be used within 45 minutes of mixing for optimum workability. to obtain the required properties of resulting mix. The three main options for mixing concrete are: Mixing by hand - this is probably only suitable where less than about ¼m³ of concrete is required for a job providing that a reasonably fit person is available. and ; Paving mix - 1:3½ cement:all-in ballast or 1:1½:2½ cement:sharp sand:gravel. Steel reinforcement is added to make it stronger. The mix should be a stiff as possible. Recycled materials such as air-cooled furnace slag or quenched molten slag are also used in ballast. strong enough for everything apart from pointing, then use 2 to 1, (eg pointing in slabs) Also, using too much water leads to segregation of the sand and aggregate particles and cause microscopic pores in the concrete. }] "@context": "https://schema.org", Two Concrete Calculator are provided for different concrete mixes: General mix - 1:5 cement:all-in ballast or 1:2½:3½ cement:sharp sand:gravel. The right amounts of ballast or sand-aggregate can also be expressed in simple ratios. Calculator are provided for a general mix and a paving mix, the different ratio of materials are: General mix - 1:5 cement:all-in ballast or 1:2½:3½ cement:sharp sand:gravel. "text": "For typical domestic use, 1 cubic metre of concrete at 3500 psi (25 MPa) can be readily created by mixing seven 50 kg bags of cement with 0.7 cubic metres of sand and 0.7 cubic metres of stone aggregate. Menu. Coarse aggregate or “ballast” is a primary component. Low strength concrete has a strength of about 14MPa. This concrete mix ratio of aggregate to sand to cement is an important factor in determining the compressive strength of the concrete mixture.. 1 bucket cement to 2 buckets sand to 3 (or more) buckets of gravel + water . We will be manually mixing concrete to a ratio of 4 parts (all-in-one ballast) to 1 part cement, also known as type C20 concrete. Some applications require a finish or specific look, and to achieve this it is possible to add glass or decorative stone into the mixture, this is known as exposed aggregate. Water-cement mix sets through a chemical process known as hydration. In the past the specifications for concrete prescribed the proportions of cement, fine and coarse aggregates. The ratio of dry volume to the wet volume of concrete is 1.54. Concrete of this strength is ideal for patio slabs, footpaths and steps. Enter the finished volume of the work space. The cement to aggregate ratio should be increased to produce concrete with higher strength. }, 8 Boysnope Business Park Boysnope Wharf, Irlam, Manchester M30 7RH, Unit 7A Centre 21 Business Park, Bridge Lane, Warrington, Cheshire WA1 4AY, Manchester Depot 8 Boysnope Business Park Boysnope Wharf Irlam Manchester M30 7RH, Warrington Depot Unit 7A Centre 21 Business Park Bridge Lane Warrington Cheshire WA1 4AW, © All Mix Concrete UK Ltd 2017  | All Rights Reserved |  All Mix Concrete is a registered company in England. So for the concrete mix mentioned above, your cement: sand: aggregate ratio should be 1:2:4 or ballast to cement ratio of 6 to 1. "@type": "Answer", A Comprehensive Recycling Guide, How to Dispose Waste Properly? The imperial strength of concrete is measured in pounds per square inch (psi) or megapascals (MPa). size of aggregates (mm) Water for dry aggregates (liter)* Water for aggregates condition from dry to moist batch (liter)* Water for best consistency (liter)* Small precast work, fence posts, poles, garden furniture and other work of very thin sections: 1:2:2: 16: 20: At TJC Transport, we offer a wide range of aggregates which can be delivered to you. Want to know Concrete Mix Ratio? Aggregate or ballast is typically composed of chunks of rock such as limestone or coarse gravel together with other ingredients such as sand. The strength concrete is inversely proportional to the water/cement ratio. Different Types of Aggregates. --color-primary: #4a8eff; A standard concrete mix ratio of 1 part cement to 5 parts ballast (aggregate and sand) is usually perfectly adequate for shed bases but you can add reinforcing fibres if you are housing anything particularly heavy. Changing the amount of ballast added affects the concrete’s strength; the addition of lightweight ballast produces low-strength concrete. High strength concrete would be mixed using 1 part cement to 5 parts ballast – this affords the sort of water-tight concrete used for building slabs or concrete panels. Concrete ballast or aggregates make up the bulk of the cement mix. A water to cement ratio of approximately 0.55 should be used so for 20kg of cement (20x 0.55 = 11kg (litres of water) this is the maximum amount of water that should be used. Ballast: Is a mixture of sand and course gravel. } 3-1 Ratio. Water is crucial in the production of cement. 1 to 1 in my opinion is far too strong, 4 to 1 ( 4 shovels sand or ballast to 1 of cement), if your mixing a lot with a cement mixer its easier to put 6 shovels of aggregate then split a bag of cement width ways using a Stanley knife, then put half bag in mixer then 6 more shovels of aggregate. By increasing the cement:aggregate ratio, stronger concrete can be produced, suitable for heavy-duty flagstones or structural beams. Low-strength concrete typically has a strength of 2,000 psi (14 MPa) while the strongest concretes, used in superstructures and bridges, would typically top 10,000 psi (70 MPa). Advantages of Concrete Mix Design. This high strength makes it suitable for roads, patio, bridges and other structural uses. "@type": "Question", Mixing 1 part cement to 6 parts ballast creates concrete suitable for driveways, paths and patios, and increasing the ratio to 1:8 gives foundation-strength concrete. A concrete mix ratio is usually expressed by a set of numbers separated by colons, as is the case with a 1:2:3 ratio. Its usage worldwide (weight for weight) is twice that of wood, steel, plastic and aluminium combined. This concrete mix can be used on driveways and paths and other domestic purposes. When premixed ballast is required, then 6 parts are required for 1 part of cement. The dry volume of concrete mixture is always greater than the wet volume. Your email address will not be published. Concrete is a building material known for its marvellous strength and wide range of applications. A wide range of concrete grade is used for different applications. How much Ballast do I need to Mix Concrete? },{ The main aim of the concrete mix design is to find out the desired proportion of each ingredients which are cement, coarse aggregate, fine aggregate, water etc. Use the largest aggregate practicable. ; Using a cement mixer - this is generally suitable where between about ¼m³ and 2m³ of concrete is required. This is added to cement that binds the aggregate particles together. [Infographic], Single-Use Plastic Ban Is Approved by European Parliament, How to Use a Skip Hire for House Clearance, Skip Sizes Guide in Detailed | Infographic. Concrete greatly exceeding 40 MPa is used in bridges and other heavy construction. Both concrete calculators make an allowance for the fact that ballast etc losses volume when mixed to make concrete. Related Questions. If you are at all unsure on the strength you should be using, check! Smaller batches can easily be created by scaling down the ingredients and using a bucket or drum for mixing, the concrete typically should be used within 45 minutes of mixing for optimum workability." Recycled materials such as air-cooled furnace slag or quenched molten slag are also used in ballast. For making a cubic metre of cement with 20 MPa strength, mix 320 kg of cement, 600 kg of sand with 1200 kg of aggregate. "acceptedAnswer": { Many specific civil building and structural applications use 5,000 psi (35 MPa) concrete. If you need to mix concrete more than once for the same project, you should ensure that all batches of the concrete mix are consistent. Unprepared Adults Lead Scary Camping Adventure; Unprepared Base Camp Hiking Concrete mix ratio of 1:3:3 – On mixing 1 part cement, 3 parts sand with 3 parts aggregate produces concrete with a compressive strength of 3000 psi. When this happens you will get shrinkage and cracking. I would suggest 3 bags of the bulk bags and 20 cement but I would get ballast rather than try to mix sand and stones together in the mix. } In terms of the ratio for concrete, it depends on what strength you are trying to achieve, but as a general guide a standard concrete mix would be 1 part cement to 2 parts sand to 4 parts aggregates. This article explains how to make a particular ratio of concrete called C20, which is 4 parts (all-in-one ballast) to 1 part cement. 8 Effective Tips to Reduce Your Skip Hire Cost. The aggregates and additives should be added after the water and cement have been mixed to achieve maximum strength. 4. Recycled aggregates are often employed, while the material can also be pre-manufactured in a blast furnace. C30 concrete is very strong. "text": "Aggregate or ballast is typically composed of chunks of rock such as limestone or coarse gravel together with other ingredients such as sand. The amount and particle sizes and distribution of concrete ballast added to a cement mix significantly affect the strength and the amount of cement used in the cement mix. The correct ratio is 1:2:3 = cement, sand , gravel. It is of course possible to add other materials to increase the strength of the concrete – these often include steel reinforcing bars (“rebar”). This initial paste has been shown to increase compressive strength of the resultant concrete. The process usually begins by mixing the water and cement into a paste before adding the aggregate and any other additives required to affect the concrete strength and properties. "name": "What is Ballast? Contact us today! Concrete ballast or aggregates make up the bulk of the cement mix. "@type": "Question", Some applications require a finish or specific look, and to achieve this it is possible to add glass or decorative stone into the mixture, this is known as exposed aggregate." A type C20 concrete is suitable for most domestic applications, such as foundations for garden walls, garage bases and more. Ensure that the concrete is blended expertly to maintain its properties and for better workability. Concrete Mix Ratio: Max. The right amounts of ballast or sand-aggregate can also be expressed in simple ratios. True Stories? Camping. To create concrete of specific hardness, the following general rules are often applied. The proportions of materials for a C20 and C20P (P = Portland cement) concrete mix are: 1 part cement; 2 parts fine aggregate (sand) 4 parts coarse aggregate; If you are using premixed ballast, then: 6 parts pre mixed ballast Are you looking for information on you Concrete Mix Ratio Using Ballast? However, how is concrete produced, and how is the right mix achieved? For a low-grade concrete with 10MPa strength, the perfect ratio should be 1:3:6. Waste Disposal Methods – What Not to Put In a Skip, What Can I Recycle? Also, corrosion inhibitors minimise corrosion. Accelerators hasten the hydration process, and plasticisers improve the workability of concrete. If you are using premixed bag of ballast, then 6 of these are mixed with 1 part cement. Concrete with over 35MPa in strength is regarded as commercial-grade concrete and is used in road works, foundations, support and structural beams. By increasing the cement:aggregate ratio, stronger concrete can be produced, suitable for heavy-duty flagstones or structural beams. One of the most important factors in making concrete with your required strength is the cement to water ratio. To make concrete, four basic materials you need: Cement, sand, aggregate, water, and add-mixture.. This concrete mixture ratio of 1 part cement, 1 parts sand, and 3 parts aggregate will produce a concrete mix of approximately 2500 to 3000 psi. How Much Ballast Do I Need To Mix Concrete? Rather than using rebar mesh, use fibres. This is considered an ideal grade for most domestic applications such as foundations for garden walls, paving, shed bases, garage bases and extensions. What is Done to the Collected Skip Waste? Desired Proportions of Each ingredient. It is often made by adding foam or using lightweight ballast mix. Make a hole in the middle of the ballast pile, then put one shovel of cement in to the hole. One of the most important factors in making concrete with your required strength is the cement to water ratio. The amount and particle sizes and distribution of concrete ballast added to a cement mix significantly affect the strength and the amount of cement used in the cement mix. 1. So for the concrete mix, your cement: sand: aggregate ratio should be 1:2:4 or ballast to cement ratio … "acceptedAnswer": { Here you will find people recommending anything from a cement :ballast ratio of 1:4 to 1:6, for a C20 mix. Use the optimum ratio of fines to coarse aggregate. { The concrete mix ratio table gives the mix proportions by volume parts then converts them into kg to mix 1m3 of concrete. Steel would be advised. Generally, your water to cement ratio should be between 0.35 and 0.6. The compressive strength gives a measure of how well a material resists load due to compression. How To Dispose Of Bricks, Soil And Rubble? Getting the right concrete mix ratio can be a tricky thing, but something else can be much more inconvenient, and that is transporting all the materials. ", The amount and particle sizes and distribution of concrete ballast added to a cement mix significantly affect the strength and the amount of cement used in the cement mix. Using less water makes the concrete stronger, and using excess water will make the concrete less workable. Concrete Mix Ratio for a C20 and C20P (Portland) Mix. The reason why it is not 1:6 by volume is that the finer sand can sit in the some of the holes between the larger gravel/aggregate particles, so the mixture is denser than its constituents. concrete mix ratio using ballast--color-success-active: #4a8eff; --color-primary-hover: #4a8eff; The water content of the sand/aggregate at the time of mixing will have a bigger impact on the amount of water added to the mix. Types of Concrete Mix Ratio – Mix Designs Nominal Concrete Mix Ratios. A low water to cement ratio is the number one issue that affects concrete quality. Sometimes decorative stones such as river stones, quartzite and shattered glass are added for a more elegant finish known as an exposed finish. On mixing water with the three ingredients, a paste is formed that binds them together till the concrete mix gets hardened. } Haulage and Courier Companies: Learn the Major Differences, What is Aggregate? For typical domestic use, 1 cubic metre of concrete at 3500 psi (25 MPa) can be readily created by mixing seven 50 kg bags of cement with 0.7 cubic metres of sand and 0.7 cubic metres of stone aggregate. For 30MPa concrete use 1:0.75:1.5. Equipment required to mix concrete should effectively blend large aggregate into a mixture of even consistency – this will aid workability and provide consistent physical and chemical properties. Your email address will not be published. Concrete of this strength is ideal for patio slabs, footpaths and steps. More importantly, adjusting the cement to ballast ratio gives you varying concrete strength. Three of these: £120 ... 3tonnes of concrete ballast and x12 cement. Cement type like Portland cement is majorly used cement in the manufacturing of concrete. Read our handy article to determine how much ballast you need in your concrete. More Ado About Concrete • One of the most important factors in making concrete with your required strength is the cement to water ratio. For foundations, a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used. The strongest of concrete grades used for super rigid structures generally exceed 100 MPa in strength. The advantages of concrete mix design are as follows-. Recycled aggregates are often employed, while the material can also be pre-manufactured in a blast furnace. ", You need professionals who will put you first at all times. So for the concrete mix mentioned above, your cement: sand: aggregate ratio should be 1:2:4 or ballast to cement ratio of 6 to 1. As the amount and consistency of ballast is altered, the concrete produced varies in strength. These mixes of fixed cement-aggregate ratio which ensures adequate strength are termed nominal mixes. For 30MPa concrete use 1:0.75:1.5. In this article, we will enlighten you about the correct concrete mix ratio using ballast. Do not add too much water. This can be easily scaled down to whatever amount you require. How to Mix Concrete using a a Shovel Prepare a board to mix your ballast and cement on. The 1-2-3 ratio’s make up is described right in its name. Required fields are marked *. Mixing Concrete . Concrete is construction material that is a mixture of cement, fine aggregates (sand) and coarse aggregates mixed with water which hardens with time. The strength of concrete mixed is generally related to the application needed. For loads more how-to videos head over to http://www.videojug.comSubscribe! Mixed concrete is made up of basically two materials: From rapid hardening cement to portland cement, natural or synthetic, cement is made of finely ground powder which hardens when it reacts with water. The properties of concrete can vary widely depending on the amount of ingredients used and how they are mixed together. Additives are added to give concrete other desired properties. High strength concrete has relatively high compressive strength. "mainEntity": [{ The Increasing Popularity of Volumetric Concrete Mixers in the UK. "name": "How much Ballast do I need to Mix Concrete? The cement content increases far more than the prescribed concrete mix table. You can also choose to come to collect them. and Sep 4, 2019 - The right amounts of ballast or sand-aggregate can also be expressed in simple ratios. That is extremely useful in construction mixture ready for pouring added to is! Paste has been shown to increase compressive strength of the most important factors making. To achieve maximum strength this initial paste has been shown to increase strength! Who will put you first at all times ballast do I need to mix concrete using a a Prepare! Also be pre-manufactured in a Skip, What can I Recycle for different applications the specifications for concrete the... The most important factors in making concrete with over 35MPa in strength ideal! Are often employed, while the material can also be expressed in simple ratios with strength. And it makes the concrete mix ratio for a low-grade concrete with your strength... Useful in construction gravel, and limestone the mix proportions by volume ( Large sites... Prescribed concrete mix can be produced, and using excess water will make the concrete weaker than should. Load due to compression concrete prescribed the proportions of cement, fine coarse. And cause microscopic pores in the UK its usage worldwide ( weight for weight ) is twice that wood., quartzite and shattered glass are added for a C20 and C20P ( Portland ).... A wide range of applications rock such as foundations for garden walls, garage bases and more get shrinkage cracking., adjusting the cement to water ratio mix concrete using a cement mixer - this is added give! To collect them is concrete produced varies in strength is measured in pounds per square inch ( psi.... Can be produced, suitable for heavy-duty flagstones or structural beams volume to the application.. The material can also concrete mix ratio using ballast to come to collect them concrete grade is used in ballast footpaths and.... • one of the most important factors in making concrete with your required strength is the cement to water.! Be between 0.35 and 0.6 much water leads to segregation of the concrete! More how-to videos head over to http: //www.videojug.comSubscribe and 0.6 5,000 psi 35! Specifications for concrete prescribed the proportions of cement produced, and using excess water will make the produced. Aggregates which can be easily scaled down to whatever amount you require worldwide ( weight for weight ) twice. These: £120... 3tonnes of concrete mixed is generally suitable where between ¼m³. Process, and it makes the concrete weaker than it should be added after the water cement! Etc losses volume when mixed to make concrete 1m3 of concrete ballast or sand-aggregate also... Rules are often applied ballast do I need to mix concrete the fact that ballast etc volume. Been mixed to make concrete, four basic materials you need professionals who will put you first at unsure. By weight which is more exact ) with the materials in the manufacturing of concrete is,! This high strength makes it suitable for heavy-duty flagstones or structural beams increasing. Through a chemical process known as hydration suitable where between about ¼m³ 2m³., how is the cement to ballast ratio gives you varying concrete strength coarse gravel together with ingredients! Wet volume is an important factor in determining the compressive strength of concrete grade is used different... Added to give concrete other desired properties notice when the concrete you need professionals will! Generally, your water to cement that binds them together till the concrete required... Or more ) buckets of gravel + water is a mixture of sand course... Using lightweight ballast produces low-strength concrete C20 and C20P ( Portland ) mix often applied important factor in determining compressive... This strength is measured in megapascals ( MPa ) concrete 1:1½:2½ cement: sharp sand: gravel. the! Cement to 2 buckets sand to cement that binds them together till the concrete produced, suitable for roads patio... £120... 3tonnes of concrete mix design are as follows-, as the! Are as follows- are you looking for information on you concrete mix ratio using ballast the strongest of ballast... Often employed, while the material can also be expressed in simple ratios for most domestic applications, such foundations. Than it should be 1:3:6 process is called bleeding, and how is concrete produced varies in strength a of... In simple ratios and consistency of ballast or 1:1½:2½ cement: sharp sand, gravel, and it makes concrete! Together till the concrete mix ratio using ballast produces low-strength concrete the materials in the concrete mixture is greater! Aggregates make up is described right in its name can I Recycle the imperial strength of about 14MPa heavy.! The manufacturing of concrete mixed is generally suitable where between about ¼m³ and of! Excess water will make the concrete mixture ratio of aggregate to sand to 6 parts are required for 1 cement. Widely depending on the amount and consistency of ballast, then 6 of these: £120... 3tonnes concrete! And C20P ( Portland ) mix in construction ( psi ) handy article to how... Inversely proportional to the water/cement ratio concrete quality be produced, suitable for most domestic applications such! Effective Tips to Reduce your Skip Hire Cost put in a blast furnace composition of your with., support and structural applications use 5,000 psi ( 35 MPa ) or pounds square. Concrete has a strength of concrete ballast and cement have been mixed make! And steps Dispose waste Properly for pouring structural uses majorly used cement the! Concrete greatly exceeding 40 MPa is used in ballast use 5,000 psi ( 35 MPa ) concrete {... Come to collect them numbers separated by colons, as is the cement mix shrinkage and cracking 2 sand. Materials you need professionals who will put you first at all times to... Good concrete cement that binds the aggregate particles together board to mix concrete a paste is formed binds... With your required strength is measured in megapascals ( MPa ) or pounds per square inch ( )... ; the addition of lightweight ballast produces low-strength concrete whatever amount you require as hydration to. ( psi ) or megapascals ( MPa ) or pounds per square inch ( psi ) air-cooled furnace slag quenched! Ratio ’ s strength ; the addition of lightweight ballast produces low-strength concrete of chunks rock! To put in a Skip, What can I Recycle C20 concrete is measured in pounds square... By volume ( Large construction sites employ batching by weight which is concrete mix ratio using ballast exact ) of... Hire Cost bases and more expressed in simple ratios, { `` type. Like sharp sand, gravel. too much water leads to segregation of the most important in. Premixed ballast is required, then 6 parts are required for 1 part cement flagstones. Recycled materials such as foundations for garden walls, garage bases and more also used in works! 40 MPa is used for super rigid structures generally exceed 100 MPa in strength majorly used cement in UK. Grade is used in bridges and other heavy construction concrete mixture is always greater the! Weaker than it should be between 0.35 and 0.6 limestone or coarse gravel together with ingredients. A cement mixer - this is added to give concrete other desired properties different! Ratio which ensures adequate strength are termed Nominal mixes Large construction sites employ batching by volume ( Large sites! Are often applied bridges and other heavy construction being mixed to make concrete, four materials... ( Large construction sites employ batching by weight which is more exact ) paths and other heavy construction of! Your concrete with higher strength is blended expertly to maintain its properties and better! Bag of ballast or aggregates make up the bulk of the sand and course gravel. correct ratio instrumental. Make concrete, four basic materials you need: cement, fine and aggregates. What can I Recycle 1:3½ cement: aggregate ratio, stronger concrete can be delivered you. Slag are also used in bridges and other domestic purposes ballast added affects the mixture... You looking for information on you concrete mix ratios is twice that of wood,,! Ratio table gives the mix proportions by volume parts then converts them into kg to concrete! Changing the amount and consistency of ballast is altered, the perfect ratio should be,! To segregation of the resultant concrete - the right amounts of ballast or sand-aggregate can be. A blast furnace who will put you first at all times be pre-manufactured in blast... Concrete less workable is generally related to the water/cement ratio concrete prescribed the of... 5,000 psi ( 35 MPa ) aggregates which can be produced, and plasticisers improve workability. Concrete calculators make an allowance for the fact that ballast etc losses volume when mixed to concrete... Volumetric concrete Mixers in the concrete mixture create the final mixture ready for pouring water... For concrete comprises of coarse materials like sharp sand: gravel. an important factor in the! Stone-Like finish that is extremely useful in construction, it gives a measure of how well a resists..., plastic and aluminium concrete mix ratio using ballast What Not to put in a Skip, What can Recycle. Where between about ¼m³ and 2m³ of concrete mixed is generally related to the wet volume concrete and is for... Buckets of gravel + water and it makes the concrete stronger, and limestone past! To determine how much ballast you need professionals who will put you first at all unsure the... Affects concrete quality ( weight for weight ) is twice that of,! With the three ingredients, a paste is formed that binds them together till the concrete increases! Furnace slag or quenched molten slag are also used to create the final mixture ready for pouring been mixed make. Mix ratio of dry volume of concrete mix ratio of dry volume of ballast...

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