膨胀剂和膨胀混凝土行业经过三十年的发展,产品使用量已居世界首位。据统计,国内现有膨胀剂生产企业近百家,年生产能力近千万吨。2016年膨胀剂(含膨胀剂衍生产品)销量约为180万吨。为了掌握行业整体发展情况和市场走向,引领行业健康发展,协会对混凝土膨胀剂生产企业进行生产销售情况调查。此次调查活动采取企业自愿参加原则,调查表中 Expansion agent and expansion of the concrete industry after 30 years of development, product usage has ranked first in the world. According to statistics, nearly 100 domestic expansion agent production enterprises, annual production capacity of nearly 10 million tons. In 2016, the sales volume of expanders (including expanders and derivatives) was about 1.8 million tons. In order to grasp the overall development of the industry and market trends, to lead the healthy development of the industry, the Association of concrete expansion agent production and sales of enterprises survey. The investigation activities to take the principle of voluntary participation in enterprises, the questionnaire