A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Washed sand deflocculating agent and concrete adopting deflocculating agent
The invention provides a washed-out sand deflocculating agent and concrete adopting the deflocculating agent. Flocculating agents left in washed-out sand at least comprise polyacrylamide type flocculating agents, polyaluminum chloride and polyferric sulfate. The washed sand deflocculating agent comprises the following components in parts by weight: 80-100 parts of inorganic salt, 50-80 parts of an oxidizing agent, 5-20 parts of alkali, 1-8 parts of a retarder and 100-200 parts of water, the retarder is one or more of white sugar, sodium citrate, sodium tartrate and sodium gluconate. The washed sand deflocculating agent is composed of the inorganic salt, the oxidizing agent, the alkali and the retarder, the deflocculating agent achieves the purpose of destroying the flocculation effect of the flocculating agent by collapsing the net structure of the flocculating agent and then enabling polyacrylamide to be hydrolyzed or subjected to chain scission, and after the deflocculating agent is added, the admixture mixing amount of washed sand concrete can be obviously reduced, and the service life of the washed sand concrete is prolonged. The flowability and workability of the water-washing machine-made sand concrete are improved, the viscosity of the concrete is reduced, and the strength of the concrete is improved.
本发明提供一种水洗砂抗絮凝剂及采用该抗絮凝剂的混凝土，所述水洗砂中残留的絮凝剂至少包括聚丙烯酰胺类絮凝剂、聚合氯化铝、聚合硫酸铁；按照重量份计，水洗砂抗絮凝剂包括无机盐80‑100份、氧化剂50‑80份、碱5‑20份、缓凝剂1‑8份、水100‑200份；所述缓凝剂为白糖、柠檬酸钠、酒石酸钠、葡萄糖酸钠中的一种或几种。本发明的水洗砂抗絮凝剂由无机盐、氧化剂、碱、缓凝剂组成，抗絮凝剂通过瓦解絮凝剂的网状结构，再使聚丙烯酰胺水解或者断链，达到破坏絮凝剂絮凝作用的目的，加入抗絮凝剂后，可明显降低水洗砂混凝土的外加剂掺量，提高水洗机制砂混凝土的流动性和和易性，降低混凝土粘度并提高混凝土强度。
Washed sand deflocculating agent and concrete adopting deflocculating agent
The invention provides a washed-out sand deflocculating agent and concrete adopting the deflocculating agent. Flocculating agents left in washed-out sand at least comprise polyacrylamide type flocculating agents, polyaluminum chloride and polyferric sulfate. The washed sand deflocculating agent comprises the following components in parts by weight: 80-100 parts of inorganic salt, 50-80 parts of an oxidizing agent, 5-20 parts of alkali, 1-8 parts of a retarder and 100-200 parts of water, the retarder is one or more of white sugar, sodium citrate, sodium tartrate and sodium gluconate. The washed sand deflocculating agent is composed of the inorganic salt, the oxidizing agent, the alkali and the retarder, the deflocculating agent achieves the purpose of destroying the flocculation effect of the flocculating agent by collapsing the net structure of the flocculating agent and then enabling polyacrylamide to be hydrolyzed or subjected to chain scission, and after the deflocculating agent is added, the admixture mixing amount of washed sand concrete can be obviously reduced, and the service life of the washed sand concrete is prolonged. The flowability and workability of the water-washing machine-made sand concrete are improved, the viscosity of the concrete is reduced, and the strength of the concrete is improved.
本发明提供一种水洗砂抗絮凝剂及采用该抗絮凝剂的混凝土，所述水洗砂中残留的絮凝剂至少包括聚丙烯酰胺类絮凝剂、聚合氯化铝、聚合硫酸铁；按照重量份计，水洗砂抗絮凝剂包括无机盐80‑100份、氧化剂50‑80份、碱5‑20份、缓凝剂1‑8份、水100‑200份；所述缓凝剂为白糖、柠檬酸钠、酒石酸钠、葡萄糖酸钠中的一种或几种。本发明的水洗砂抗絮凝剂由无机盐、氧化剂、碱、缓凝剂组成，抗絮凝剂通过瓦解絮凝剂的网状结构，再使聚丙烯酰胺水解或者断链，达到破坏絮凝剂絮凝作用的目的，加入抗絮凝剂后，可明显降低水洗砂混凝土的外加剂掺量，提高水洗机制砂混凝土的流动性和和易性，降低混凝土粘度并提高混凝土强度。
Washed sand deflocculating agent and concrete adopting deflocculating agent
一种水洗砂抗絮凝剂及采用该抗絮凝剂的混凝土
ZANG MINGHUI (author) / WU HUIHUA (author) / WANG QIANG (author) / WU DELONG (author) / ZHU MINTAO (author) / BIAN CHENGHUI (author) / ZHOU LI (author)
2024-01-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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