Efficient Shrinkage Reducing Admixture In Dry-Mix Mortars NP15

Experience Less Shrinkage in Dry-Mix Mortars with Shrinkage Reducing Admixture NP15

Chemical shrinkage of normal Portland cement pastes (0.4 ≤ w/c < 0.8) has been measured at 20°C and of pastes with w/c = 0.5 furthermore at 35, and 50°C by means of measuring the volume change of samples of cement paste during the hydration.

Shrinkage primarily takes place because of the porous inter-molecular space that's present in concrete, grout and mortar. Thus, when these materials are mixed with water and an exothermic reaction takes place, they expand. Similarly, when they begin to dry and cool, they contract or shrink.

Recommended for dry-mix mortars that require water to be added during construction. NP15 can effectively control the volatilization of water during the drying process, leaving no gaps on the surface and less shrinkage, and low plastic shrinkage.

Characteristics