Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-ductility cement-based composite material using coarse quartz sand as fine aggregate and preparation method of high-ductility cement-based composite material
The invention discloses a high-ductility cement-based composite material using coarse quartz sand as fine aggregate and a preparation method of the high-ductility cement-based composite material. The high-ductility cement-based composite material is prepared from the following raw materials in parts by weight: 800 to 900 parts of cement, 3300 to 3500 parts of fly ash, 844 to 846 parts of quartz sand, 1266 to 1268 parts of water, 33 to 36 parts of polycarboxylate superplasticizer, 71 to 73 parts of polyvinyl alcohol fiber and 1.9 parts of hydroxypropyl methyl cellulose ether. The coarse quartz sand with the maximum particle size not exceeding 2.36 mm is adopted and compared with traditional fine quartz sand, the fineness modulus of the traditional fine quartz sand measured through a screening experiment is 0.77, the fineness modulus of the coarse quartz sand is 3.96, and the defects that the traditional fine quartz sand ECC is high in shrinkage, poor in abrasion resistance and the like are effectively overcome.
本申请公开了一种使用粗石英砂作为细骨料的高延性水泥基复合材料及其制备方法，由以下重量份的原材料制备而成水泥：800‑900份、粉煤灰：3300‑3500份、石英砂：844‑846份、水：1266‑1268份、聚羧酸高效减水剂：33‑36份、聚乙烯醇纤维71‑73份，羟丙基甲基纤维素醚1.9份；采用最大粒径不超过2.36mm的粗石英砂并与传统精细石英砂作为对比，经筛分实验测得传统精细石英砂的细度模数为0.77，粗石英砂的细度模数分别为3.96，有效弥补了传统精细石英砂ECC的高收缩，耐磨性差等不足。
High-ductility cement-based composite material using coarse quartz sand as fine aggregate and preparation method of high-ductility cement-based composite material
The invention discloses a high-ductility cement-based composite material using coarse quartz sand as fine aggregate and a preparation method of the high-ductility cement-based composite material. The high-ductility cement-based composite material is prepared from the following raw materials in parts by weight: 800 to 900 parts of cement, 3300 to 3500 parts of fly ash, 844 to 846 parts of quartz sand, 1266 to 1268 parts of water, 33 to 36 parts of polycarboxylate superplasticizer, 71 to 73 parts of polyvinyl alcohol fiber and 1.9 parts of hydroxypropyl methyl cellulose ether. The coarse quartz sand with the maximum particle size not exceeding 2.36 mm is adopted and compared with traditional fine quartz sand, the fineness modulus of the traditional fine quartz sand measured through a screening experiment is 0.77, the fineness modulus of the coarse quartz sand is 3.96, and the defects that the traditional fine quartz sand ECC is high in shrinkage, poor in abrasion resistance and the like are effectively overcome.
本申请公开了一种使用粗石英砂作为细骨料的高延性水泥基复合材料及其制备方法，由以下重量份的原材料制备而成水泥：800‑900份、粉煤灰：3300‑3500份、石英砂：844‑846份、水：1266‑1268份、聚羧酸高效减水剂：33‑36份、聚乙烯醇纤维71‑73份，羟丙基甲基纤维素醚1.9份；采用最大粒径不超过2.36mm的粗石英砂并与传统精细石英砂作为对比，经筛分实验测得传统精细石英砂的细度模数为0.77，粗石英砂的细度模数分别为3.96，有效弥补了传统精细石英砂ECC的高收缩，耐磨性差等不足。
High-ductility cement-based composite material using coarse quartz sand as fine aggregate and preparation method of high-ductility cement-based composite material
一种使用粗石英砂作为细骨料的高延性水泥基复合材料及其制备方法
YANG CHENG (Autor:in) / LU CONG (Autor:in) / PANG ZHIMING (Autor:in)
22.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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