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A platform for research: civil engineering, architecture and urbanism
Modified limestone powder for concrete
The invention provides a modified limestone powder for concrete. The modified limestone powder is prepared from the following raw materials in parts by weight: 80-100 parts of limestone powder, 30-50parts of polyurethane resin, 12-18 parts of emery powder, 10-15 parts of slaked lime, 25-30 parts of fly ash, 7-10 parts of sea sand, 7-15 parts of porcelainized powder, 14-19 parts of rubber particles, 3-7 parts of an antioxidant, 2-5 parts of a composite flame retardant and 1-3 parts of an impact modifier. The prepared modified limestone powder has a good comprehensive performance, has the advantages of good heat preservation, heat insulation, flame retardance, insulation, fire resistance, water resistance, shock resistance, small thermal weight loss and the like when being used as a concrete material, is good in mechanical properties, and is an additive for high-quality concrete.
本发明提出了一种用于混凝土的改性石灰石粉，由以下原料制备而成：石灰石粉80‑100份、聚氨酯树脂30‑50份、刚玉粉12‑18份、消石灰10‑15份、粉煤灰25‑30份、海砂7‑10份、瓷化粉7‑15份、橡胶颗粒14‑19份、抗氧剂3‑7份、复合阻燃剂2‑5份和抗冲改性剂1‑3份。本发明制得的改性石灰石粉具有良好的综合性能，用于混凝土材料时具有良好的保温、隔热，阻燃，绝缘、隔火、隔水、抗震、热失重小等优点，同时力学性能好，是一种有优质的混凝土的添加料。
Modified limestone powder for concrete
The invention provides a modified limestone powder for concrete. The modified limestone powder is prepared from the following raw materials in parts by weight: 80-100 parts of limestone powder, 30-50parts of polyurethane resin, 12-18 parts of emery powder, 10-15 parts of slaked lime, 25-30 parts of fly ash, 7-10 parts of sea sand, 7-15 parts of porcelainized powder, 14-19 parts of rubber particles, 3-7 parts of an antioxidant, 2-5 parts of a composite flame retardant and 1-3 parts of an impact modifier. The prepared modified limestone powder has a good comprehensive performance, has the advantages of good heat preservation, heat insulation, flame retardance, insulation, fire resistance, water resistance, shock resistance, small thermal weight loss and the like when being used as a concrete material, is good in mechanical properties, and is an additive for high-quality concrete.
本发明提出了一种用于混凝土的改性石灰石粉，由以下原料制备而成：石灰石粉80‑100份、聚氨酯树脂30‑50份、刚玉粉12‑18份、消石灰10‑15份、粉煤灰25‑30份、海砂7‑10份、瓷化粉7‑15份、橡胶颗粒14‑19份、抗氧剂3‑7份、复合阻燃剂2‑5份和抗冲改性剂1‑3份。本发明制得的改性石灰石粉具有良好的综合性能，用于混凝土材料时具有良好的保温、隔热，阻燃，绝缘、隔火、隔水、抗震、热失重小等优点，同时力学性能好，是一种有优质的混凝土的添加料。
Modified limestone powder for concrete
一种用于混凝土的改性石灰石粉
ZHANG JIANJUN (author) / ZHANG PING (author)
2020-06-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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