过去20年,混凝土膨胀剂在我国发展迅速,为减少混凝土结构裂渗、提高其耐久性做出了巨大贡献。随着我国经济持续高速发展,混凝土材料在未来相当长的一个时期仍然是最主要的基础建设材料,因此膨胀剂和膨胀混凝土依旧是混凝土材料科学研究和关注的焦点。为了加强膨胀剂和膨胀混凝 In the past 20 years, concrete expanders have developed rapidly in our country and made a great contribution to reducing the permeability of concrete structures and increasing their durability. As China's economy continues to develop rapidly, concrete materials remain the most important infrastructure materials for a long period of time. Therefore, expansive and expansive concrete are still the focus of scientific research and attention of concrete materials. In order to strengthen the expansion agent and expansion coagulation