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A platform for research: civil engineering, architecture and urbanism
Foam concrete taking waste aerated concrete as raw material and preparation method thereof
The invention relates to a foam concrete taking waste aerated concrete as a raw material and a preparation method thereof, and belongs to the technical field of building materials. The foam concrete comprises the following components in parts by weight: 10 to 40 parts of steel slag powder; 50-100 parts of slag powder; 5-20 parts of desulfurized gypsum powder; 5-40 parts of waste aerated concrete fragments; 0.1-5 part of sodium chloride; 0.1-3 part of a water reducing agent; 0.5-5 part of polypropylene fibers; and 0.002-0.1 part of a foaming agent. According to the invention, the foam concretewith excellent performance is prepared by utilizing the combination of the industrial solid waste cementing material and the waste aerated concrete fragments, the industrial solid waste and the construction waste are utilized with high additional value, and meanwhile, sodium chloride is added, chloride ions are introduced, the setting time is shortened, and the pore structure is improved; the foamconcrete prepared by the method has the heat conductivity coefficient of 0.11013-0.2174 w/m.k, the dry density of 500-752 kg/m<3> and the compressive strength of 4.5-9.1 Mpa. The strength of the foamconcrete is equivalent to that of cement-based concrete. The waste aerated concrete is recovered, and the foam concrete is environment-friendly.
本发明涉及一种以废加气混凝土为原料的泡沫混凝土及其制备方法，属于建筑材料技术领域，所述泡沫混凝土包括如下重量份数的组分：钢渣粉：10‑40份；矿渣粉：50‑100份；脱硫石膏粉：5‑20份；废加气混凝土碎块：5‑40份；氯化钠：0.1‑5份；减水剂：0.1‑3份；聚丙烯纤维：0.5‑5份；发泡剂：0.002‑0.1份。本发明利用工业固废胶凝材料与废弃加气混凝土碎块之间的结合，制备出一种性能优良的泡沫混凝土，实现高附加值利用工业固废和建筑垃圾，同时加入氯化钠，引入氯离子，缩短凝结时间，改善孔结构；本发明制备的泡沫混凝土其导热系数为0.11013‑0.2174w/m·k，干密度为500‑752kg/m3，抗压强度为4.5‑9.1Mpa，与水泥基混凝土强度水平相当，同时还实现了废加气混凝土的回收利用，对环境友好。
Foam concrete taking waste aerated concrete as raw material and preparation method thereof
The invention relates to a foam concrete taking waste aerated concrete as a raw material and a preparation method thereof, and belongs to the technical field of building materials. The foam concrete comprises the following components in parts by weight: 10 to 40 parts of steel slag powder; 50-100 parts of slag powder; 5-20 parts of desulfurized gypsum powder; 5-40 parts of waste aerated concrete fragments; 0.1-5 part of sodium chloride; 0.1-3 part of a water reducing agent; 0.5-5 part of polypropylene fibers; and 0.002-0.1 part of a foaming agent. According to the invention, the foam concretewith excellent performance is prepared by utilizing the combination of the industrial solid waste cementing material and the waste aerated concrete fragments, the industrial solid waste and the construction waste are utilized with high additional value, and meanwhile, sodium chloride is added, chloride ions are introduced, the setting time is shortened, and the pore structure is improved; the foamconcrete prepared by the method has the heat conductivity coefficient of 0.11013-0.2174 w/m.k, the dry density of 500-752 kg/m<3> and the compressive strength of 4.5-9.1 Mpa. The strength of the foamconcrete is equivalent to that of cement-based concrete. The waste aerated concrete is recovered, and the foam concrete is environment-friendly.
本发明涉及一种以废加气混凝土为原料的泡沫混凝土及其制备方法，属于建筑材料技术领域，所述泡沫混凝土包括如下重量份数的组分：钢渣粉：10‑40份；矿渣粉：50‑100份；脱硫石膏粉：5‑20份；废加气混凝土碎块：5‑40份；氯化钠：0.1‑5份；减水剂：0.1‑3份；聚丙烯纤维：0.5‑5份；发泡剂：0.002‑0.1份。本发明利用工业固废胶凝材料与废弃加气混凝土碎块之间的结合，制备出一种性能优良的泡沫混凝土，实现高附加值利用工业固废和建筑垃圾，同时加入氯化钠，引入氯离子，缩短凝结时间，改善孔结构；本发明制备的泡沫混凝土其导热系数为0.11013‑0.2174w/m·k，干密度为500‑752kg/m3，抗压强度为4.5‑9.1Mpa，与水泥基混凝土强度水平相当，同时还实现了废加气混凝土的回收利用，对环境友好。
Foam concrete taking waste aerated concrete as raw material and preparation method thereof
以废加气混凝土为原料的泡沫混凝土及其制备方法
TAN SHENGYING (author) / LIANG YONG (author) / YANG TINGTING (author) / LIU HUIHUI (author) / LIU JING (author) / WANG FUJIN (author) / ZHAO LEI (author) / LI XUEYING (author) / SUN WEI (author)
2021-02-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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