Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight high-strength concrete and preparation method thereof
The invention discloses light high-strength concrete and a preparation method thereof. The lightweight high-strength concrete comprises a dry powder material and a liquid material, wherein the dry powder material comprises the following components in parts by weight: 490-515 parts of cement, 280-305 parts of mineral powder, 40-45 parts of silica fume, 300-320 parts of first lightweight aggregate, 255-340 parts of second lightweight aggregate and 0-200 parts of gravel aggregate. Wherein the first lightweight aggregate has a first particle size specification. The second lightweight aggregate has a second particle size specification, and the second particle size specification is larger than the first particle size specification. The gravel aggregate has a third particle size specification which is larger than the first particle size specification. The liquid material comprises the following components in parts by weight: 200-240 parts of water and 4-10 parts of a water reducing agent. The lightweight high-strength concrete provided by the invention has low density and high strength at the same time, the flowability of gelled slurry is improved by adjusting the use amounts of the cement, the mineral powder and the silica fume, and a lightweight aggregate pre-wetting process or a non-pre-wetting process can be adopted, so that the lightweight high-strength concrete is wide in application range.
本一种轻质高强混凝土及其制备方法。轻质高强混凝土包括干粉料和液料，干粉料的配比为490～515重量份的水泥，280～305重量份的矿粉，40～45重量份的硅灰，300～320重量份的第一轻质骨料，255～340重量份的第二轻质骨料，0～200份重量份的碎石骨料。其中第一轻质骨料具有第一粒径规格。第二轻质骨料具有第二粒径规格，第二粒径规格大于第一粒径规格。碎石骨料具有第三粒径规格，第三粒径规格大于第一粒径规格。液料的配比为200～240重量份的水，4～10重量份的减水剂。根据本申请的轻质高强混凝土，同时具有低密度和高强度，且调节水泥、矿粉和硅灰的用量改善了胶凝浆体的流动性，并且既可以采用轻质骨料预湿工艺也可以采用非预湿工艺，适用范围广。
Lightweight high-strength concrete and preparation method thereof
The invention discloses light high-strength concrete and a preparation method thereof. The lightweight high-strength concrete comprises a dry powder material and a liquid material, wherein the dry powder material comprises the following components in parts by weight: 490-515 parts of cement, 280-305 parts of mineral powder, 40-45 parts of silica fume, 300-320 parts of first lightweight aggregate, 255-340 parts of second lightweight aggregate and 0-200 parts of gravel aggregate. Wherein the first lightweight aggregate has a first particle size specification. The second lightweight aggregate has a second particle size specification, and the second particle size specification is larger than the first particle size specification. The gravel aggregate has a third particle size specification which is larger than the first particle size specification. The liquid material comprises the following components in parts by weight: 200-240 parts of water and 4-10 parts of a water reducing agent. The lightweight high-strength concrete provided by the invention has low density and high strength at the same time, the flowability of gelled slurry is improved by adjusting the use amounts of the cement, the mineral powder and the silica fume, and a lightweight aggregate pre-wetting process or a non-pre-wetting process can be adopted, so that the lightweight high-strength concrete is wide in application range.
本一种轻质高强混凝土及其制备方法。轻质高强混凝土包括干粉料和液料，干粉料的配比为490～515重量份的水泥，280～305重量份的矿粉，40～45重量份的硅灰，300～320重量份的第一轻质骨料，255～340重量份的第二轻质骨料，0～200份重量份的碎石骨料。其中第一轻质骨料具有第一粒径规格。第二轻质骨料具有第二粒径规格，第二粒径规格大于第一粒径规格。碎石骨料具有第三粒径规格，第三粒径规格大于第一粒径规格。液料的配比为200～240重量份的水，4～10重量份的减水剂。根据本申请的轻质高强混凝土，同时具有低密度和高强度，且调节水泥、矿粉和硅灰的用量改善了胶凝浆体的流动性，并且既可以采用轻质骨料预湿工艺也可以采用非预湿工艺，适用范围广。
Lightweight high-strength concrete and preparation method thereof
一种轻质高强混凝土及其制备方法
CHEN YANG (Autor:in) / LU YIFENG (Autor:in) / LU ZEXIN (Autor:in) / LI GUOHUAN (Autor:in) / LIU JIE (Autor:in)
03.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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