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A platform for research: civil engineering, architecture and urbanism
Modified cave slag stone powder for preparing concrete and preparation process of modified cave slag stone powder
The invention provides modified cave slag stone powder for preparing concrete and a preparation process of the modified cave slag stone powder. The preparation process of the modified cave slag stone powder for preparing the concrete comprises the following steps: primarily ball-milling the cave slag stone powder, diluting hydrochloric acid and carrying out acid leaching activation, diluting an aluminate coupling agent and carrying out primary surface modification, carrying out secondary surface modification, adding calcium sulfate whiskers, carrying out centrifugal spray drying and collecting the modified cave slag stone powder. The hole slag stone powder is subjected to composite modification by using the aluminate coupling agent and the silane coupling agent, so that the bonding strength of the hole slag stone powder can be effectively improved, the concrete prepared by taking the hole slag stone powder subjected to composite modification as one of the raw materials has relatively good cohesiveness, and the concrete has relatively strong impact resistance after being dried.
本发明提供一种用于制备混凝土的改性洞渣石粉及其制备工艺。一种用于制备混凝土的改性洞渣石粉的制备工艺包括以下步骤：洞渣石粉初步球磨、稀释盐酸并酸浸活化、稀释铝酸酯偶联剂并进行一次表面改性、二次表面改性并加入硫酸钙晶须和离心喷雾干燥并收集改性洞渣石粉。本发明通过利用铝酸酯偶联剂和硅烷偶联剂对洞渣石粉进行复合改性，从而能够有效提高洞渣石粉的粘结强度，将该复合改性后的洞渣石粉作为原料之一制备的混凝土具有较好的黏聚性，且该混凝土干燥后具有较强的抗冲击性能。
Modified cave slag stone powder for preparing concrete and preparation process of modified cave slag stone powder
The invention provides modified cave slag stone powder for preparing concrete and a preparation process of the modified cave slag stone powder. The preparation process of the modified cave slag stone powder for preparing the concrete comprises the following steps: primarily ball-milling the cave slag stone powder, diluting hydrochloric acid and carrying out acid leaching activation, diluting an aluminate coupling agent and carrying out primary surface modification, carrying out secondary surface modification, adding calcium sulfate whiskers, carrying out centrifugal spray drying and collecting the modified cave slag stone powder. The hole slag stone powder is subjected to composite modification by using the aluminate coupling agent and the silane coupling agent, so that the bonding strength of the hole slag stone powder can be effectively improved, the concrete prepared by taking the hole slag stone powder subjected to composite modification as one of the raw materials has relatively good cohesiveness, and the concrete has relatively strong impact resistance after being dried.
本发明提供一种用于制备混凝土的改性洞渣石粉及其制备工艺。一种用于制备混凝土的改性洞渣石粉的制备工艺包括以下步骤：洞渣石粉初步球磨、稀释盐酸并酸浸活化、稀释铝酸酯偶联剂并进行一次表面改性、二次表面改性并加入硫酸钙晶须和离心喷雾干燥并收集改性洞渣石粉。本发明通过利用铝酸酯偶联剂和硅烷偶联剂对洞渣石粉进行复合改性，从而能够有效提高洞渣石粉的粘结强度，将该复合改性后的洞渣石粉作为原料之一制备的混凝土具有较好的黏聚性，且该混凝土干燥后具有较强的抗冲击性能。
Modified cave slag stone powder for preparing concrete and preparation process of modified cave slag stone powder
一种用于制备混凝土的改性洞渣石粉及其制备工艺
XU AOJING (author) / ZHANG QINGHE (author) / TIAN LIUHU (author) / WANG JING (author) / LI YUZONG (author) / GAO MIN (author) / LI YUFEI (author) / XU LIXIN (author)
2023-09-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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