Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Frost resisting and waterproof fine-grained slag ash concrete for roofs of residential structures
The frost resistance and waterproofness of the concrete developed are 500 cycles and 8 to 12 W which is considerably higher than the requirements of the Building Code 2.03.01-84 for roof structures (300 cycles and 6 W, respectively). The concrete does not require waterproof and frost resisting coatings. The fine-grained concrete developed consisted of the following materials: M 500 and 600 portland cement (about 520 - 640 kg/m3), slag sand (925 - 1085 kg/m3), hydra removed ash ( 185 - 220 kg/m3), water (215 - 250 kg/m3) and 136-157 M hydrophobic admixture (0.1 percent by weight of cement). The 1-year investigation on physio-mechanical properties of the concrete demonstrated its advantage over the ordinary concrete. The prism-to-cube strength ratio for the concrete developed and ordinary concrete mere 0.8 to 0.85 and 0.70 to 0.75, respectively. At 1 year, the shrinkage strains and creep for the fine-grained and ordinary concrete were 0.10 to 0.15 mm/m, 0.22 to 0.25 mm/m and 0.14 to 0.24 mm/m , 0.27 to 0.34 mm/m, respectively. The modulus of elasticity of the concrete investigated was l.l to 1.3 higher than that of the ordinary concrete. The concrete is used at the Tom-Usinsky large-panel house-building plant.
Frost resisting and waterproof fine-grained slag ash concrete for roofs of residential structures
The frost resistance and waterproofness of the concrete developed are 500 cycles and 8 to 12 W which is considerably higher than the requirements of the Building Code 2.03.01-84 for roof structures (300 cycles and 6 W, respectively). The concrete does not require waterproof and frost resisting coatings. The fine-grained concrete developed consisted of the following materials: M 500 and 600 portland cement (about 520 - 640 kg/m3), slag sand (925 - 1085 kg/m3), hydra removed ash ( 185 - 220 kg/m3), water (215 - 250 kg/m3) and 136-157 M hydrophobic admixture (0.1 percent by weight of cement). The 1-year investigation on physio-mechanical properties of the concrete demonstrated its advantage over the ordinary concrete. The prism-to-cube strength ratio for the concrete developed and ordinary concrete mere 0.8 to 0.85 and 0.70 to 0.75, respectively. At 1 year, the shrinkage strains and creep for the fine-grained and ordinary concrete were 0.10 to 0.15 mm/m, 0.22 to 0.25 mm/m and 0.14 to 0.24 mm/m , 0.27 to 0.34 mm/m, respectively. The modulus of elasticity of the concrete investigated was l.l to 1.3 higher than that of the ordinary concrete. The concrete is used at the Tom-Usinsky large-panel house-building plant.
Frost resisting and waterproof fine-grained slag ash concrete for roofs of residential structures
Pavlenko, S.I. (Autor:in) / Permyakov, A.A. (Autor:in) / Aphanasiev, V.K. (Autor:in)
1997
7 Seiten, 6 Tabellen, 14 Quellen
Aufsatz (Konferenz)
Englisch
Frost resisting and waterproof fine-grained slag ash concrete for roofs of residential structures
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