Concrete is made by mixing that cement with water and a binding ... There are countless variations of material and ratios you might use, depending on the project and desired outcome, but a good ...

Concrete mixing traditionally involved combining sand, cement, lime and water in various ratios to make mortar to apply to building projects. The “recipes” for these mixtures were rarely ...

Pellenq describes the mix of 1.5 to be "magical ratio," with twice the mechanical resistance to fractures of normal cement. The analysis of the cement mix was carried out at a molecular level ...

This 1925 cover image depicts a concrete mixing plant—one of three—for ... Additionally, proportioning by fineness modulus and water-cement ratio helped ensure concrete quality.