Water‐Cement‐Density Ratio Law for the 28‐Day Compressive Strength Prediction of Cement‐Based Materials

In the present contribution, the water‐cement‐density ratio law for the standard curing 28‐day compressive strength of cement‐based materials including grout, normal concrete, ceramsite concrete, and foamed concrete is proposed. The standard curing 28‐day compressive strength of different grouts, normal concrete, ceramsite concrete, and foamed concrete was tested. Simulations for Abrams’ law, Bolomey’s formula, and water‐cement‐density ratio law were carried out and compared. The water‐cement‐density ratio law illustrates better simulations for the prediction of the 28‐day compressive strength of cement‐based materials. The water‐cement‐density ratio law includes both the water‐cement ratio and relative apparent density of the cement‐based material. Relative apparent density of the cement‐based material is an important one of all the factors determining the compressive strength of the cement‐based material. The water‐cement‐density ratio law will be beneficial for the precise and generalized prediction of the 28‐day standard curing compressive strength of cement‐based materials.