Influence of physico-chemical characteristics on the carbonation of cement paste at high replacement rates of metakaolin
Abstract
The study detailed in this paper examined the influence of two types of metakaolin (MK1 and MK2) at high replacement rates on the carbonation rate of cement paste. "Flash" calcination produced MK1, which had a high amount of quartz mixed in, while "fluidized bed" calcination produced MK2, which was relatively pure. The metakaolins were incorporated into the cement paste at rates of up to 50% by weight of cement and cured for