Experimental Study on the Characteristics of hydration of cement paste using high-early-strength cement and hardening accelerator

In order to develop concrete generating compressive strength of 15MPa���30MPa aging for 6���12 hours in the room temperature curing, Hardening accelerator containing Ca2+ mixed with rapid hardening portland cement containing C3S in quantity. The result was that the more addictive contents of Hardening accelerator is, the more greatly early compressive strength was improved. That���s because the composition of Ca(OH)2 was mass-produced at early-ages.��� ��������� ��������������������������������������� ��������� ������������������������ ��������� ��������� ������ ��������� ���������. ������������:12������������C1