Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant flame-retardant explosion-proof high-strength concrete and preparation method thereof
The invention discloses high-temperature-resistant flame-retardant explosion-proof high-strength concrete and a preparation method thereof; the high-temperature-resistant flame-retardant explosion-proof high-strength concrete comprises 300-350 parts of cement, 500-580 parts of pebbles, 100-150 parts of fly ash, 300-400 parts of gravels, 80-120 parts of nano clay, 50-80 parts of reinforced fibers, 25-35 parts of modified rubber, 10-15 parts of a flame retardant, 10-15 parts of a water reducing agent, 50-70 parts of an adhesive, 80-100 parts of a mineral filler and 200-250 parts of water. The preparation method comprises the following steps: weighing cement, pebbles, fly ash, gravels, nano clay, a flame retardant and a mineral filler in parts by weight, and uniformly mixing to prepare dry powder; adding water into the dry powder, stirring and mixing the materials to form slurry, adding reinforced fibers, modified rubber, a water reducing agent and an adhesive into the slurry, and continuously and uniformly stirring the materials to obtain the high-temperature-resistant flame-retardant explosion-proof high-strength concrete. The product not only has high strength at ordinary times but also is small in strength reduction after high-temperature fire passing, good in toughness and few in cracks after high-temperature compression. The product has excellent flame retardance, high-temperature resistance and explosion-proof performance, is simple and convenient to prepare, and has popularization value.
本发明公开了一种耐高温阻燃防爆高强混凝土及其制备方法，包括：水泥300‑350份、石子500‑580份、粉煤灰100‑150份、砂砾300‑400份、纳米黏土80‑120份、强化纤维50‑80份、改性橡胶25‑35份、阻燃剂10‑15份、减水剂10‑15份、胶粘剂50‑70份、矿物填料80‑100份和水200‑250份，称取重量份数的水泥、石子、粉煤灰、砂砾、纳米黏土、阻燃剂和矿物填料，混合均匀，制得干粉料；然后向干粉料内加入水搅拌混合形成浆料，向浆料内加入强化纤维、改性橡胶、减水剂和胶粘剂，持续搅拌均匀后得到耐高温阻燃防爆高强混凝土。不仅平时具有高强度，在高温过火后，其强度降低小，韧性好，高温受压后裂痕少，具有优良的阻燃、耐高温以及防爆性能，制备简便，具有推广价值。
High-temperature-resistant flame-retardant explosion-proof high-strength concrete and preparation method thereof
The invention discloses high-temperature-resistant flame-retardant explosion-proof high-strength concrete and a preparation method thereof; the high-temperature-resistant flame-retardant explosion-proof high-strength concrete comprises 300-350 parts of cement, 500-580 parts of pebbles, 100-150 parts of fly ash, 300-400 parts of gravels, 80-120 parts of nano clay, 50-80 parts of reinforced fibers, 25-35 parts of modified rubber, 10-15 parts of a flame retardant, 10-15 parts of a water reducing agent, 50-70 parts of an adhesive, 80-100 parts of a mineral filler and 200-250 parts of water. The preparation method comprises the following steps: weighing cement, pebbles, fly ash, gravels, nano clay, a flame retardant and a mineral filler in parts by weight, and uniformly mixing to prepare dry powder; adding water into the dry powder, stirring and mixing the materials to form slurry, adding reinforced fibers, modified rubber, a water reducing agent and an adhesive into the slurry, and continuously and uniformly stirring the materials to obtain the high-temperature-resistant flame-retardant explosion-proof high-strength concrete. The product not only has high strength at ordinary times but also is small in strength reduction after high-temperature fire passing, good in toughness and few in cracks after high-temperature compression. The product has excellent flame retardance, high-temperature resistance and explosion-proof performance, is simple and convenient to prepare, and has popularization value.
本发明公开了一种耐高温阻燃防爆高强混凝土及其制备方法，包括：水泥300‑350份、石子500‑580份、粉煤灰100‑150份、砂砾300‑400份、纳米黏土80‑120份、强化纤维50‑80份、改性橡胶25‑35份、阻燃剂10‑15份、减水剂10‑15份、胶粘剂50‑70份、矿物填料80‑100份和水200‑250份，称取重量份数的水泥、石子、粉煤灰、砂砾、纳米黏土、阻燃剂和矿物填料，混合均匀，制得干粉料；然后向干粉料内加入水搅拌混合形成浆料，向浆料内加入强化纤维、改性橡胶、减水剂和胶粘剂，持续搅拌均匀后得到耐高温阻燃防爆高强混凝土。不仅平时具有高强度，在高温过火后，其强度降低小，韧性好，高温受压后裂痕少，具有优良的阻燃、耐高温以及防爆性能，制备简便，具有推广价值。
High-temperature-resistant flame-retardant explosion-proof high-strength concrete and preparation method thereof
一种耐高温阻燃防爆高强混凝土及其制备方法
ZHANG QIANG (Autor:in) / HOU XIAOQIAN (Autor:in)
16.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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