Don't confuse concrete mix with sand mix or mortar mix. They don't contain the aggregate (stones or gravel) that's necessary ...

The Romans used a primitive mix for their concrete. Mortar consisted of small gravel and coarse sand mixed together with hot lime and water. To reduce shrinkage, they used horse hair, much like we ...

100 parts of sand, 50 parts of whiting, and 10 of red lead make a moderately hard cement. 100 parts of sand ... coloring substances may be employed to mix with the above composition, such as ...

KAMPALA - For developers and builders, cement is the foundation of any construction project. Yet, the improper handling and mixing of cement can lead to structural weaknesses and costly repairs.