免烧砖又称非烧结砖,是以粘土为主要原料,掺入少量胶凝材料(石灰、水泥及适量外加剂)等组份,经粉碎搅拌、半干高压成型,自然或人工养护而成的不用烧结的墙体材料。在国外,首先由丹麦技术大学托马斯·伦舍特和托本·汉森教授于六十年代末研制成石灰红壤型免烧砖,以后在瑞士、美洲等地区推广。在我国,免烧砖是近几年才发展起来的一种新型建筑材料。目前,对免烧砖许多 Non-fired brick, also known as non-fired brick, is made of clay as the main raw material, mixed with a small amount of cementitious material (lime, cement, and appropriate amount of additives) and other components, and is crushed and mixed, semi-dried and high-pressure molded, and naturally or artificially cured. The non-sintered wall material. In foreign countries, first developed by the Danish Technical University Thomas Rensett and Prof. Torben Hansen in the late 1960s, it was developed into a lime-red soil type unburned brick, which was later promoted in Switzerland, the Americas and other regions. In China, unburned brick is a new type of building material that has only developed in recent years. At present, many of the unburned bricks