A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of water-resistant reinforcing agent and phosphogypsum-based artificial aggregate
The invention discloses a preparation method of a water-resistant reinforcing agent and a phosphogypsum-based artificial aggregate. The water-resistant reinforcing agent comprises the following components in parts by weight: 60-70 parts of a waterproof agent, 3-5 parts of an early strength agent, 10-20 parts of an active exciting agent, 10-15 parts of a passivating agent, 2-5 parts of a thickening agent and 0.1-20 parts of a water reducing agent, wherein the total weight of the components is 100 parts. The preparation method of the artificial aggregate comprises the following steps: drying and grinding the undisturbed phosphogypsum; drying and grinding the undisturbed slag; calcining the cement kiln ash at high temperature and grinding; the preparation method comprises the following steps: adding ground phosphogypsum into a granulator, rotating, adding a mixture of ground slag powder and ground cement kiln ash and a water-resistant enhancer into the granulator, carrying out artificial granulation, and adding water in the granulation process to obtain the phosphogypsum-based artificial aggregate. After the water-resistant reinforcing agent is added into the phosphogypsum-based artificial aggregate, the early strength of the phosphogypsum-based artificial aggregate is greatly improved, the water resistance is remarkably improved, and the leaching rate of heavy metal ions such as fluorine and phosphorus is greatly reduced.
本发明公开了一种耐水增强剂及磷石膏基人造骨料的制备方法。该耐水增强剂按总重量为100重量份计，包括以下组分：防水剂60‑70重量份、早强剂3‑5重量份、活性激发剂10‑20重量份、钝化剂10‑15重量份、增稠剂2‑5重量份、减水剂0.1‑20重量份。所述人造骨料的制备方法包括：将原状磷石膏烘干磨细；将原状矿渣烘干磨细；将水泥窑灰高温煅烧磨细；将磨细磷石膏加入造粒机中转动，再将磨细矿渣粉和磨细水泥窑灰的混合料、以及耐水增强剂加入造粒机中进行人工造粒，并在造粒过程中加入水，获得磷石膏基人造骨料。本发明使得磷石膏基人造骨料在添加耐水增强剂之后，其早期强度大幅度提升，耐水性能显著提高，氟、磷等重金属离子的浸出率大幅度降低。
Preparation method of water-resistant reinforcing agent and phosphogypsum-based artificial aggregate
The invention discloses a preparation method of a water-resistant reinforcing agent and a phosphogypsum-based artificial aggregate. The water-resistant reinforcing agent comprises the following components in parts by weight: 60-70 parts of a waterproof agent, 3-5 parts of an early strength agent, 10-20 parts of an active exciting agent, 10-15 parts of a passivating agent, 2-5 parts of a thickening agent and 0.1-20 parts of a water reducing agent, wherein the total weight of the components is 100 parts. The preparation method of the artificial aggregate comprises the following steps: drying and grinding the undisturbed phosphogypsum; drying and grinding the undisturbed slag; calcining the cement kiln ash at high temperature and grinding; the preparation method comprises the following steps: adding ground phosphogypsum into a granulator, rotating, adding a mixture of ground slag powder and ground cement kiln ash and a water-resistant enhancer into the granulator, carrying out artificial granulation, and adding water in the granulation process to obtain the phosphogypsum-based artificial aggregate. After the water-resistant reinforcing agent is added into the phosphogypsum-based artificial aggregate, the early strength of the phosphogypsum-based artificial aggregate is greatly improved, the water resistance is remarkably improved, and the leaching rate of heavy metal ions such as fluorine and phosphorus is greatly reduced.
本发明公开了一种耐水增强剂及磷石膏基人造骨料的制备方法。该耐水增强剂按总重量为100重量份计，包括以下组分：防水剂60‑70重量份、早强剂3‑5重量份、活性激发剂10‑20重量份、钝化剂10‑15重量份、增稠剂2‑5重量份、减水剂0.1‑20重量份。所述人造骨料的制备方法包括：将原状磷石膏烘干磨细；将原状矿渣烘干磨细；将水泥窑灰高温煅烧磨细；将磨细磷石膏加入造粒机中转动，再将磨细矿渣粉和磨细水泥窑灰的混合料、以及耐水增强剂加入造粒机中进行人工造粒，并在造粒过程中加入水，获得磷石膏基人造骨料。本发明使得磷石膏基人造骨料在添加耐水增强剂之后，其早期强度大幅度提升，耐水性能显著提高，氟、磷等重金属离子的浸出率大幅度降低。
Preparation method of water-resistant reinforcing agent and phosphogypsum-based artificial aggregate
耐水增强剂及磷石膏基人造骨料的制备方法
MA YANTAO (author) / FANG XIAOJIAN (author) / ZHANG XIANG (author) / DU ZHENGYU (author) / ZHAO SULI (author) / ZHANG JUNLONG (author) / LIU GANG (author) / HUANG XUQUAN (author) / WU SHAOYANG (author) / SHI YUZHU (author)
2024-10-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2020
Durable phosphogypsum-based mixed aggregate and preparation method thereof
| European Patent Office | 2024
Water-resistant phosphogypsum board and preparation method thereof
| European Patent Office | 2020