At present, steaming pressure and pneumatic concrete blocks, small hollow blocks of concrete, and small blocks such as ash and ash blocks, etc. produced by industrial solid wastes as the main raw materials, which are produced as the main raw materials. , Environmental protection, the advantages of light quality, insulation, insulation, sound insulation, earthquake resistance, and earthquake resistance, and have been widely used in construction engineering. However, in the actual engineering construction, most of these new buildings are still used for masonry and noodles with traditional cement mortar and cement lime mortar. The use of traditional mortar not only consumes a lot of natural resources, but also increases the construction process and difficulty, which can easily produce engineering quality problems such as cracks, air drums, or falling off. And development. To this end, many technology workers have conducted a large number of experimental research and product research and development, which effectively improves the adaptability of building mortar. However, most of the research results are based on cement mortar, developing mortar plus agents suitable for new building block materials. This experiment is based on the large -scale powder and coal ash produced by the coal -fired power plant in my country as the main raw material, and develops the gel material used for building mortar; the coal pads are used as a fine material for preparing the mortar. The use of high coal pads and masonry mortar and noodle mortar suitable for new building block materials.
(1) The grinding processing process with a large amount of pine and coal ash is used 12%mixed with cement, 13%lime powder, 2.5%of desulfurization gypsum, and 2.5%additives, can be prepared for building mortar with good performance.
(2) The coal pads are used as a fine aggregate for the preparation of building mortar, which can all replace natural sand and artificial sand.
(3) Prepare the gel material and coal pads to prepare the mortar in the quality ratio of the gel and coal scum to
1: 1.00 and 1: 1.25, which can obtain the intensity level M15
[[ 123] M10, the layering does not exceed 20mm, the condensation time is less than 5h, the bonding strength is greater than 0.2MPa, and the contraction value is less than 1.1mm/m. And the two types of mortar for masonry projects are conducive to solving engineering quality problems such as cracks, empty drums, and even falling off the masonry.