Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-durability low-viscosity high-strength machine-made sand concrete as well as preparation method and application thereof
The invention discloses high-durability low-viscosity high-strength machine-made sand concrete as well as a preparation method and application thereof. The concrete is composed of the following materials in parts by weight: 275-340 parts of cement, 32-50 parts of mineral powder, 45-100 parts of fly ash, 32-75 parts of microbeads, 700-750 parts of sand, 1000-1050 parts of broken stone, 120-140 parts of water, and 4.5-5 parts of a polycarboxylic acid multifunctional additive. The preparation method comprises the following steps: stirring the cement, the mineral powder, the fly ash, the microbeads, the sand and the broken stone for 30 seconds, fully and uniformly mixing all the materials, and then adding the polycarboxylic acid multifunctional additive and the water into a stirrer together for stirring for not less than 150 seconds to obtain the high-durability low-viscosity high-strength machine-made sand concrete. The invention also discloses an application of the high-durability low-viscosity high-strength machine-made sand concrete. The concrete prepared by the invention has the advantages of high strength, good durability and low viscosity, the engineering construction progress can be remarkably improved, and the quality problems of honeycomb pitted surfaces, cavities and the like caused by poor flowing state of concrete are reduced.
本申请公开了一种高耐久低粘度高强机制砂混凝土、制备方法及应用，该混凝土由以下以重量份数计的材料组成：水泥275～340份，矿粉32～50份，粉煤灰45～100份，微珠32～75份，砂700～750份，碎石1000～1050份，水120～140份，聚羧酸多功能外加剂4.5～5份。上述的制备方法，包括：先将水泥、矿粉、粉煤灰、微珠、砂、碎石搅拌30s，使各物料充分混合均匀，随后将聚羧酸多功能外加剂和水一起加入到搅拌机中，总搅拌时间不低于150s，得到高耐久性低粘度高强机制砂混凝土。一种如所述的高耐久低粘度高强机制砂混凝土的应用。本申请制备的混凝土具有强度高、耐久性好、粘度低的优点，可显著提高工程施工进度，减少因混凝土流动状态不佳而导致的蜂窝麻面、空洞等质量问题。
High-durability low-viscosity high-strength machine-made sand concrete as well as preparation method and application thereof
The invention discloses high-durability low-viscosity high-strength machine-made sand concrete as well as a preparation method and application thereof. The concrete is composed of the following materials in parts by weight: 275-340 parts of cement, 32-50 parts of mineral powder, 45-100 parts of fly ash, 32-75 parts of microbeads, 700-750 parts of sand, 1000-1050 parts of broken stone, 120-140 parts of water, and 4.5-5 parts of a polycarboxylic acid multifunctional additive. The preparation method comprises the following steps: stirring the cement, the mineral powder, the fly ash, the microbeads, the sand and the broken stone for 30 seconds, fully and uniformly mixing all the materials, and then adding the polycarboxylic acid multifunctional additive and the water into a stirrer together for stirring for not less than 150 seconds to obtain the high-durability low-viscosity high-strength machine-made sand concrete. The invention also discloses an application of the high-durability low-viscosity high-strength machine-made sand concrete. The concrete prepared by the invention has the advantages of high strength, good durability and low viscosity, the engineering construction progress can be remarkably improved, and the quality problems of honeycomb pitted surfaces, cavities and the like caused by poor flowing state of concrete are reduced.
本申请公开了一种高耐久低粘度高强机制砂混凝土、制备方法及应用，该混凝土由以下以重量份数计的材料组成：水泥275～340份，矿粉32～50份，粉煤灰45～100份，微珠32～75份，砂700～750份，碎石1000～1050份，水120～140份，聚羧酸多功能外加剂4.5～5份。上述的制备方法，包括：先将水泥、矿粉、粉煤灰、微珠、砂、碎石搅拌30s，使各物料充分混合均匀，随后将聚羧酸多功能外加剂和水一起加入到搅拌机中，总搅拌时间不低于150s，得到高耐久性低粘度高强机制砂混凝土。一种如所述的高耐久低粘度高强机制砂混凝土的应用。本申请制备的混凝土具有强度高、耐久性好、粘度低的优点，可显著提高工程施工进度，减少因混凝土流动状态不佳而导致的蜂窝麻面、空洞等质量问题。
High-durability low-viscosity high-strength machine-made sand concrete as well as preparation method and application thereof
一种高耐久低粘度高强机制砂混凝土、制备方法及应用
WANG CHENGQI (Autor:in) / ZHANG XIAOLE (Autor:in) / HUANG PENGJU (Autor:in) / LIANG YUANBO (Autor:in) / GUO ZHIPENG (Autor:in)
16.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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