中国目前有大约数万个砖厂正在生产实心粘土砖。大量的可耕地被毁而不能再用于农业生产。为了保护耕地,发展农业生产,当前最迫切的就是停止粘土砖的生产而改用混凝土空心砌块作为粘土砖的替代产品。这对于中国的混凝土工业是一个巨大的挑战：不断提高质量和产量以满足扩大的混 There are currently tens of thousands of brick factories in China that are producing solid clay bricks. A large amount of arable land was destroyed and could no longer be used for agricultural production. In order to protect arable land and develop agricultural production, the most urgent task at present is to stop the production of clay bricks and use concrete hollow blocks as alternatives to clay bricks. This is a huge challenge for China’s concrete industry: continuous improvement in quality and production to meet the growing mix