A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation process of a concrete admixture. According to the technical scheme, the preparation method is characterized by comprising the following steps: S11, preparing raw materials: preparing the following components in parts by weight: 1-5 parts of a super plasticizer, 2-10 parts of a surfactant, 0.8-3 parts of ammonium salt, 2-8 parts of polymeric alkylol amine, 1-5 parts of allyl polyoxyethylene ether, 0.01-0.2 part of an initiator, 0.8-1 part of a retarder, 0.01-2 parts of a defoaming agent and 2-15 parts of sodium tetrapolypropylene benzene sulfonate; and S12, carrying out water bath reaction: sequentially putting polymeric alcohol amine, allyl polyoxyethylene ether, sodium tetrapolypropylene benzene sulfonate and ammonium salt into a water bath kettle, then raising the temperature of the water bath kettle to 60-85 DEG C, then adding an initiator, and carrying out heat preservation reaction for 3-6 hours to obtain a mixed solution. The effects of improving the contact property of the concrete and the spraying surface, eliminating the problem of serious rebound during concrete spraying, accelerating the coagulation and solidification of the sprayed concrete and improving the strength of the concrete are achieved.
本发明公开了一种混凝土外加剂的制备工艺，其技术方案要点是：包括以下步骤：S11.准备原料：准备以下重量计组分：超塑化剂1‑5份、表面活性剂2‑10份、铵盐0.8‑3份、聚合醇胺2‑8份、烯丙基聚氧乙烯醚1‑5份、引发剂0.01‑0.2份、缓凝剂0.8‑1份、消泡剂0.01‑2份以及四聚丙烯基苯磺酸钠2‑15份；S12.水浴反应：将聚合醇胺、烯丙基聚氧乙烯醚、四聚丙烯基苯磺酸钠以及铵盐依次放入水浴锅内，然后升高水浴锅的温度至60‑85℃，再加入引发剂保温反应3‑6h得到混合溶液；达到提高混凝土与喷射面接触性，消除喷射混凝土时回弹严重的问题，加速喷射混凝土凝结固化，提高混凝土强度的效果。
The invention discloses a preparation process of a concrete admixture. According to the technical scheme, the preparation method is characterized by comprising the following steps: S11, preparing raw materials: preparing the following components in parts by weight: 1-5 parts of a super plasticizer, 2-10 parts of a surfactant, 0.8-3 parts of ammonium salt, 2-8 parts of polymeric alkylol amine, 1-5 parts of allyl polyoxyethylene ether, 0.01-0.2 part of an initiator, 0.8-1 part of a retarder, 0.01-2 parts of a defoaming agent and 2-15 parts of sodium tetrapolypropylene benzene sulfonate; and S12, carrying out water bath reaction: sequentially putting polymeric alcohol amine, allyl polyoxyethylene ether, sodium tetrapolypropylene benzene sulfonate and ammonium salt into a water bath kettle, then raising the temperature of the water bath kettle to 60-85 DEG C, then adding an initiator, and carrying out heat preservation reaction for 3-6 hours to obtain a mixed solution. The effects of improving the contact property of the concrete and the spraying surface, eliminating the problem of serious rebound during concrete spraying, accelerating the coagulation and solidification of the sprayed concrete and improving the strength of the concrete are achieved.
本发明公开了一种混凝土外加剂的制备工艺，其技术方案要点是：包括以下步骤：S11.准备原料：准备以下重量计组分：超塑化剂1‑5份、表面活性剂2‑10份、铵盐0.8‑3份、聚合醇胺2‑8份、烯丙基聚氧乙烯醚1‑5份、引发剂0.01‑0.2份、缓凝剂0.8‑1份、消泡剂0.01‑2份以及四聚丙烯基苯磺酸钠2‑15份；S12.水浴反应：将聚合醇胺、烯丙基聚氧乙烯醚、四聚丙烯基苯磺酸钠以及铵盐依次放入水浴锅内，然后升高水浴锅的温度至60‑85℃，再加入引发剂保温反应3‑6h得到混合溶液；达到提高混凝土与喷射面接触性，消除喷射混凝土时回弹严重的问题，加速喷射混凝土凝结固化，提高混凝土强度的效果。
Preparation process of concrete admixture
一种混凝土外加剂的制备工艺
WANG YUNGANG (author)
2021-05-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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