1) sand
2) water
The grey powder mixed with sand and gravel to make concrete is called cement. Specifically, it is often Portland cement, which is the most common type used in construction. When combined with water, cement undergoes a chemical reaction that allows it to harden and bind the aggregates together, forming solid concrete.
Concrete is what you make a sidewalk from. To make concrete, you mix Portland cement, sand, gravel (aggregate) and water. The cement holds the aggregate together.
Actually, the rotation is mainly to keep the concrete well mixed and homogeneous during transport, thereby insuring the sand, gravel, water, and cement is well mixed. The concrete itself will set up or harden at approximately the same rate of time, regardless, whether it is rotating or not. Typical concrete mixes show noticeable hardening/stiffening after approx 2 hours, depending on temperature and other factors.**Note: The correct term is concrete. Cement is actually the dry gray powder, that when hydrated with water, bonds the rock and sand together to make concrete.
cement is made with water cement mixture and sand after all of this is added
When cement and grind stone (commonly referred to as aggregate) are mixed together, they create concrete. The cement acts as a binder that hardens when mixed with water, while the grind stone provides strength and bulk to the mixture. This combination results in a durable material used in construction for various applications, including foundations, sidewalks, and structures.
Cement and aggregates (such as sand or gravel) are mixed with water to make concrete. Cement acts as the binder, while aggregates provide the structural strength of the concrete mixture.
Cement is mixed with sand, gravel, and water to make concrete. Sand and gravel act as the aggregate to provide strength and structure, while water is crucial for hydration of the cement to form a solid material.
Concrete.
Both glass and concrete contain sand. Sand is melted to make glass. It is mixed with aggregate (gravel) portland cement and water to make concrete.
Cement itself is not waterproof, but when mixed with water and other materials to make concrete, it can be made waterproof by adding additives or sealants.
The grey powder mixed with sand and gravel to make concrete is called cement. Specifically, it is often Portland cement, which is the most common type used in construction. When combined with water, cement undergoes a chemical reaction that allows it to harden and bind the aggregates together, forming solid concrete.
From the largest manufacturer of backaged Portland Cement, bags come in 92.5 lb bags. To be clear, cement is mixed with sand and often aggregate (pea-gravel up to much larger rocks or other things such as broken out concrete chunks) to make concrete. Portland Cement by itself has no structural integrity when mixed with water. It must be mixed with sand at a minimum to make a hard, useful product (concrete). Concrete comes in bags weighing 50, 60, and 80 pounds here in the US.From the largest manufacturer of backaged Portland Cement, bags come in 92.5 lb bags. To be clear, cement is mixed with sand and often aggregate (pea-gravel up to much larger rocks or other things such as broken out concrete chunks) to make concrete. Portland Cement by itself has no structural integrity when mixed with water. It must be mixed with sand at a minimum to make a hard, useful product (concrete). Concrete comes in bags weighing 50, 60, and 80 pounds here in the US.
4CaO.Al2O3.Fe2O3 (Tetracalcium Alminoferrate)
Concrete actually contains cement as well as sand and gravel. We say "cement concrete" because cement is an ingredient in concrete. And because the cement is what binds together the sand and gravel that make up the concrete.
it is mixed with clay to form cement.
Concrete is what you make a sidewalk from. To make concrete, you mix Portland cement, sand, gravel (aggregate) and water. The cement holds the aggregate together.
Actually, the rotation is mainly to keep the concrete well mixed and homogeneous during transport, thereby insuring the sand, gravel, water, and cement is well mixed. The concrete itself will set up or harden at approximately the same rate of time, regardless, whether it is rotating or not. Typical concrete mixes show noticeable hardening/stiffening after approx 2 hours, depending on temperature and other factors.**Note: The correct term is concrete. Cement is actually the dry gray powder, that when hydrated with water, bonds the rock and sand together to make concrete.