Performance characteristics

1, condensation hardening fast

Setting time can be adjusted. Double fast cement in a few minutes began to harden, can meet emergency repair engineering needs. For the longer setting time can be used in engineering, tartaric acid, citric acid or boric acid as retarder, the general incorporation of 0.1---0.2% (of cement amount, soluble in water, mixing) the setting time can be prolonged to 20--40 minutes.

2, hours of high intensity, stable growth of late strength

From the table can be seen, high-strength double fast cement 2H strength above 20MPa, 4H intensity of about 30MPa, 28 day intensity of more than 60MPa.

3, cement with micro expansion performance

In the process of double quick cement hydration, more hydrated calcium sulfate makes the cement produce micro expansion, thus has good compactness, and the cement has good impermeability.

4, double fast cement good corrosion resistance

Under low temperature can still play a higher hour intensity.