Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Road base material prepared from foundry waste molding sand
The invention discloses a road base material prepared from foundry waste molding sand. The road base material is prepared from the following raw materials: foundry molding sand, lime, fly ash and slag. The foundry molding sand is used as an aggregate source of the alkali-activated road base material to prepare the road base material, and heavy metals in the surface of the foundry molding sand are cured by using a high-alkali environment of an alkali-activated gel system; calcium ions, organic matters and metal salts on the surface of the foundry sand are utilized to assist in exciting an alkali slag cementing material and have a filling effect, so that formation of a reinforced cementing system is promoted, waste is turned into wealth, harm is turned into treasure, the disposal and utilization process of the foundry sand is greatly simplified, economic and environmental burdens of metal foundry enterprises are relieved, and the economic and environmental benefits of metal foundry enterprises are improved. The casting molding sand value is improved to the concrete aggregate level, the national environmental protection requirement is met, and the application prospect is huge.
本发明公开了一种利用铸造废型砂制备的道路基层材料，包括如下原料：铸造型砂、石灰、粉煤灰和矿渣。本发明使用铸造型砂作为碱激道路基层材料骨料来源，制备道路基层材料，利用碱激发胶凝体系的高碱环境固化铸造型砂表面中的的重金属；利用铸造型砂表面的钙等离子以及有机物、金属盐辅助激发碱矿渣胶凝材料以及填充作用，促进形成强化型胶结体系，实现变废为宝、变害为宝，大幅简化铸造型砂的处置与利用工艺，减轻金属铸造企业的经济与环境负担，将铸造型砂价值提升至混凝土骨料水平，符合国家环保要求，应用前景巨大。
Road base material prepared from foundry waste molding sand
The invention discloses a road base material prepared from foundry waste molding sand. The road base material is prepared from the following raw materials: foundry molding sand, lime, fly ash and slag. The foundry molding sand is used as an aggregate source of the alkali-activated road base material to prepare the road base material, and heavy metals in the surface of the foundry molding sand are cured by using a high-alkali environment of an alkali-activated gel system; calcium ions, organic matters and metal salts on the surface of the foundry sand are utilized to assist in exciting an alkali slag cementing material and have a filling effect, so that formation of a reinforced cementing system is promoted, waste is turned into wealth, harm is turned into treasure, the disposal and utilization process of the foundry sand is greatly simplified, economic and environmental burdens of metal foundry enterprises are relieved, and the economic and environmental benefits of metal foundry enterprises are improved. The casting molding sand value is improved to the concrete aggregate level, the national environmental protection requirement is met, and the application prospect is huge.
本发明公开了一种利用铸造废型砂制备的道路基层材料，包括如下原料：铸造型砂、石灰、粉煤灰和矿渣。本发明使用铸造型砂作为碱激道路基层材料骨料来源，制备道路基层材料，利用碱激发胶凝体系的高碱环境固化铸造型砂表面中的的重金属；利用铸造型砂表面的钙等离子以及有机物、金属盐辅助激发碱矿渣胶凝材料以及填充作用，促进形成强化型胶结体系，实现变废为宝、变害为宝，大幅简化铸造型砂的处置与利用工艺，减轻金属铸造企业的经济与环境负担，将铸造型砂价值提升至混凝土骨料水平，符合国家环保要求，应用前景巨大。
Road base material prepared from foundry waste molding sand
一种利用铸造废型砂制备的道路基层材料
CHEN PEIYUAN (Autor:in) / WANG CHENG (Autor:in) / XIE JIANKAI (Autor:in) / XU YAJIE (Autor:in) / WANG YONGHUI (Autor:in) / TAN WEIBO (Autor:in) / LI JIN (Autor:in) / FANG JIASI (Autor:in)
05.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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