The formula for concrete mix is one part cement, two parts sand and three parts gravel or crushed stone. If hand mixing, it's inadvisable to exceed a water to cement ratio of 0.55, which translates to 55 pounds of water for every 100 pounds of cement.Know More
When mixing concrete, it's necessary to ensure that there is an adequate amount of aggregate. Leaving out the stone or sand aggregate weakens the concrete mix. Nearly all the properties of any concrete mix are primarily controlled by the water and cement ratio, especially strength and durability. It's possible to strengthen the concrete mix by adding additional cement without changing the proportion of sand and stone. The addition of excess water also weakens the concrete mixture. If a workable concrete mix can be made with less water, it is better for the concrete.
Mixing by hand does not necessarily save money compared to ordering from a ready-mix company unless the location where the concrete is needed is very remote. Hand-mixing is very hard work. The other consideration is the quality of the concrete, and the ready-mix option is usually the ideal option because of the better proportioning of the ingredients and more thorough mixing.
After pouring the concrete, mixers need to ensure that it cures properly with a curing compound. Typically, curing compounds are sprayed on the concrete after the final operation. A white-pigmented curing compound works best in dry, hot climates.Learn more about Building Materials
Home Depot, Lowe's, and Southern States sell Quikrete 80-pound concrete mix in-store, and Amazon.com sells it online. Quikrete.com offers a quantity calculator and tips for using the product.Full Answer >
It will take 60 60-pound bags of ready-mix concrete to make one cubic yard of concrete. This yield is approximate and does not include allowance for uneven subgrade, waste, etc.Full Answer >
Length multiplied by width multiplied by height all divided by 27 is the formula to use to figure out the number of cubic yards of concrete necessary to complete a project. All of the dimensions must be in feet.Full Answer >
Concrete is a mixture of cement, water and aggregates, such as sand, coarse gravel or crushed rock. After it hardens, concrete is resilient, durable, resistant to environmental extremes and capable of supporting heavy loads. Grout is similar to concrete in its ingredients, but with a fine aggregate grade and a higher water content that allows it to flow easily and be used as a filler or joint sealer.Full Answer >