Names and definitions of concrete admixtures with different functions

according to the national standard gb8075-2005, 27 types of concrete admixtures are defined. they are:1. ordinary water-reducing admixtures: when the slump of concrete is basically the same, it can reduce mixing water amount of admixture. 2. early strength agent: an admixture that accelerates the early strength development of concrete. 3. retarder: an admixture that prolongs…