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HOW MUCH BALLAST DO I NEED TO MIX CONCRETE?
MIXING THE RIGHT AMOUNTÂ OF BALLAST Concrete is a building material known for its marvellous strength and wide range of applications. Concrete gives a stone-like finish that is extremely useful in construction. Mixed concrete is made up of basically two materials: Cement, the binder which holds other materials. Concrete ballast or aggregates, which provide the bulk, increases the strength of the concrete and improves its properties to suit its application. High strength concrete and Low strength concrete has different stength and compression levels. One of the most important factors in making concrete with your required strength is the cement to water ratio. Using less water makes the concrete stronger. 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. This can be easily scaled down to whatever amount you require. For a low-grade concrete with 10MPa strength, the perfect ratio should be 1:3:6. For 30MPa concrete use 1:0.75:1.5. Read this full article: How Much Ballast Do I Need To Mix Concrete? www.tjctransport.co.uk