Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modifier preparation method, modifier and machine-made sand concrete preparation method
The invention relates to a modifier preparation method, a modifier and a machine-made sand concrete preparation method. The modifier is prepared from 20-30 parts of hydrolytic polymaleic anhydride, 20-30 parts of sodium polyacrylate grafted starch, 10-20 parts of polyvinyl alcohol, 5-10 parts of polyquaternium, 5-10 parts of sodium silicate, 1-10 parts of sodium hexametaphosphate, 5-10 parts of polyaspartic acid and 1-10 parts of L-ascorbic acid. The modifier is added when the machine-made sand concrete is prepared, the modifier is green and environment-friendly, can be chelated with metal ions in stone powder to form insoluble fine solid particles, and can neutralize trace positive and negative charges generated in the machine-made sand crushing process so as to reduce the adsorption effect of the modifier on a water reducing agent; meanwhile, the dispersing effect is excellent, the stone powder can be uniformly dispersed in a concrete system, and the stone powder is prevented from huddling and settling.
本发明涉及一种改性剂制备方法、改性剂及机制砂混凝土制备方法，改性剂包括：水解聚马来酸酐20‑30份、聚丙烯酸钠接枝淀粉20‑30份、聚乙烯醇10‑20份、聚季铵盐5‑10份、硅酸钠5‑10份、六偏磷酸钠1‑10份、聚天冬氨酸5‑10份、L‑抗坏血酸1‑10份。将本发明的改性剂在制备机制砂混凝土时加入，本申请的改性剂绿色环保，可以与石粉中的金属离子螯合形成不溶的细小固体颗粒，并可以中和机制砂破碎过程中所产生的微量正负电荷，以减少其对减水剂的吸附作用，同时具有较优的分散效果，可以使石粉均匀分散在混凝土体系中，防止石粉抱团沉降。
Modifier preparation method, modifier and machine-made sand concrete preparation method
The invention relates to a modifier preparation method, a modifier and a machine-made sand concrete preparation method. The modifier is prepared from 20-30 parts of hydrolytic polymaleic anhydride, 20-30 parts of sodium polyacrylate grafted starch, 10-20 parts of polyvinyl alcohol, 5-10 parts of polyquaternium, 5-10 parts of sodium silicate, 1-10 parts of sodium hexametaphosphate, 5-10 parts of polyaspartic acid and 1-10 parts of L-ascorbic acid. The modifier is added when the machine-made sand concrete is prepared, the modifier is green and environment-friendly, can be chelated with metal ions in stone powder to form insoluble fine solid particles, and can neutralize trace positive and negative charges generated in the machine-made sand crushing process so as to reduce the adsorption effect of the modifier on a water reducing agent; meanwhile, the dispersing effect is excellent, the stone powder can be uniformly dispersed in a concrete system, and the stone powder is prevented from huddling and settling.
本发明涉及一种改性剂制备方法、改性剂及机制砂混凝土制备方法，改性剂包括：水解聚马来酸酐20‑30份、聚丙烯酸钠接枝淀粉20‑30份、聚乙烯醇10‑20份、聚季铵盐5‑10份、硅酸钠5‑10份、六偏磷酸钠1‑10份、聚天冬氨酸5‑10份、L‑抗坏血酸1‑10份。将本发明的改性剂在制备机制砂混凝土时加入，本申请的改性剂绿色环保，可以与石粉中的金属离子螯合形成不溶的细小固体颗粒，并可以中和机制砂破碎过程中所产生的微量正负电荷，以减少其对减水剂的吸附作用，同时具有较优的分散效果，可以使石粉均匀分散在混凝土体系中，防止石粉抱团沉降。
Modifier preparation method, modifier and machine-made sand concrete preparation method
一种改性剂制备方法、改性剂及机制砂混凝土制备方法
WANG LI (Autor:in) / QU WEI (Autor:in) / PAN RUI (Autor:in) / ZHU KUN (Autor:in) / ZHU MINTAO (Autor:in) / BIAN CHENGHUI (Autor:in) / GU WEIHONG (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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