申请人:Gill Iqbal
公开号:US20130074736A1
公开(公告)日:2013-03-28
This invention relates to a new class of chemical admixtures for hydraulic cement compositions such as pastes, mortars, grouts and concretes. The cement compositions are comprised of ordinary Portland cement, blended cements, or non-Portland cements made with Supplementary Cementitious Materials. The admixtures contain complexes of metals with derivatives of hydroxycarboxylic acids, and improve properties of cement compositions, including setting, hardness, compressive strength, shrinkage, and freeze-thaw resistance. The invention discloses a method for improving the properties of hydraulic cements by adding the disclosed chemical admixtures to cement compositions, and also discloses methods of preparing said admixtures.
本发明涉及一种新的化学外加剂类别,适用于水泥组成物,如糊状物、灰浆、浆料和混凝土。水泥组成物包括普通波特兰水泥、混合水泥或使用辅助水泥材料制成的非波特兰水泥。该外加剂包含金属与羟基羧酸衍生物的复合物,并提高水泥组成物的性能,包括凝固、硬度、抗压强度、收缩和冻融抗性。本发明揭示了一种通过向水泥组成物添加所述化学外加剂来改善水泥性能的方法,还揭示了制备所述外加剂的方法。