锅炉房混凝土热风道保温耐火工艺的改进过去，散装式锅炉热风道设计的一般做法，是在紧贴风道混凝土壁内侧贴砌水泥珍珠岩保温块，表面再加抹一层耐火砂浆。传统的施工程序是先打钢筋混凝土箱形风道，然后在风道内壁贴砌保温预制块，待保温块与混凝土粘结牢固有一定强度时... Boiler room concrete hot air duct insulation fireproof technology improvement In the past, the general practice of bulk boiler hot air duct design is to put cement perlite insulation blocks on the inner side of the concrete wall of the wind tunnel, and then add a layer of fire-resistant mortar on the surface. The traditional construction procedure is to first hit the reinforced concrete box-shaped air duct, and then put the insulation prefabricated block on the inner wall of the air duct. When the heat-insulating block and the concrete are firmly bonded with certain strength...