Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete retarder and preparation method thereof
The invention provides a concrete retarder and a preparation method thereof, and the concrete retarder is prepared from the following raw materials in parts by weight: 10-15 parts of saccharides, 15-30 parts of phosphate, 1-3 parts of graphene, 5-10 parts of stearic acid, 5-10 parts of a water reducing agent, 0.5-1.5 parts of a dispersing agent, 0.5-1.5 parts of a surfactant and 50-80 parts of water. The preparation method comprises the following steps: step 1, adding a surfactant into stearic acid, then adding graphene, and homogenizing for later use; step 2, mixing saccharides, phosphate, a water reducing agent, a dispersing agent and water, uniformly stirring at 50-60 DEG C, and cooling for later use; and 3, adding the mixed solution obtained in the step 1 into the mixed solution obtained in the step 2, and uniformly stirring to obtain the concrete retarder. The concrete retarder has a good retarding effect on concrete, can quickly improve the early strength of the concrete after the retarding effect is finished, and can also be used as an exposed stone agent.
本发明提供一种混凝土缓凝剂及其制备方法，其中，混凝土缓凝剂，以重量份数计，其原料组成包括：糖类10‑15份、磷酸盐15‑30份、石墨烯1‑3份、硬脂酸5‑10份、减水剂5‑10份、分散剂0.5‑1.5份、表面活性剂0.5‑1.5份和水50‑80份。其制备方法包括：步骤一、往硬脂酸中添加表面活性剂，然后添加石墨烯，均质备用；步骤二、将糖类、磷酸盐、减水剂、分散剂和水混合，在50～60℃条件下搅拌均匀，冷却备用；步骤三、往步骤二的混合液中加入步骤一的混合液，搅拌均匀后，获得混凝土缓凝剂。该混凝土缓凝剂对混凝土有着较好的缓凝效果，当缓凝效果结束后能够迅速提升混凝土的早期强度，还可用作露石剂。
Concrete retarder and preparation method thereof
The invention provides a concrete retarder and a preparation method thereof, and the concrete retarder is prepared from the following raw materials in parts by weight: 10-15 parts of saccharides, 15-30 parts of phosphate, 1-3 parts of graphene, 5-10 parts of stearic acid, 5-10 parts of a water reducing agent, 0.5-1.5 parts of a dispersing agent, 0.5-1.5 parts of a surfactant and 50-80 parts of water. The preparation method comprises the following steps: step 1, adding a surfactant into stearic acid, then adding graphene, and homogenizing for later use; step 2, mixing saccharides, phosphate, a water reducing agent, a dispersing agent and water, uniformly stirring at 50-60 DEG C, and cooling for later use; and 3, adding the mixed solution obtained in the step 1 into the mixed solution obtained in the step 2, and uniformly stirring to obtain the concrete retarder. The concrete retarder has a good retarding effect on concrete, can quickly improve the early strength of the concrete after the retarding effect is finished, and can also be used as an exposed stone agent.
本发明提供一种混凝土缓凝剂及其制备方法，其中，混凝土缓凝剂，以重量份数计，其原料组成包括：糖类10‑15份、磷酸盐15‑30份、石墨烯1‑3份、硬脂酸5‑10份、减水剂5‑10份、分散剂0.5‑1.5份、表面活性剂0.5‑1.5份和水50‑80份。其制备方法包括：步骤一、往硬脂酸中添加表面活性剂，然后添加石墨烯，均质备用；步骤二、将糖类、磷酸盐、减水剂、分散剂和水混合，在50～60℃条件下搅拌均匀，冷却备用；步骤三、往步骤二的混合液中加入步骤一的混合液，搅拌均匀后，获得混凝土缓凝剂。该混凝土缓凝剂对混凝土有着较好的缓凝效果，当缓凝效果结束后能够迅速提升混凝土的早期强度，还可用作露石剂。
Concrete retarder and preparation method thereof
一种混凝土缓凝剂及其制备方法
LYU CHANGJUN (Autor:in) / ZHANG GUANGWU (Autor:in) / MAO YULIANG (Autor:in)
23.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME