A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing lightweight aggregate
The invention relates to a method for producing lightweight clay-based aggregates, which are particularly suitable for civil engineering, in particular for road applications and buildings. Therefore, the invention relates first to a method for preparing lightweight aggregates, comprising at least the following steps: a) a step of granulating a clay-based mixture to obtain an aggregate, b) a step of drying the obtained aggregate to obtain a dried aggregate, c) a step of heat treating the dried aggregate, and d) a step of heat treating the dried aggregate. The steps comprise two consecutive sub-steps: i) a first heat treatment sub-step performed in a reducing atmosphere at a temperature T1 of about 900 DEG C to 1200 DEG C, ii) a second heat treatment sub-step performed in an oxidizing atmosphere at a temperature T2 of about 1050 DEG C to 1300 DEG C, and d) a step of cooling the aggregate.
本发明涉及用于制备基于黏土的轻骨料的方法，所述骨料特别适用于土木工程，尤其是道路用途和建筑。因此，本发明首先涉及用于制备轻骨料的方法，其包括至少以下步骤：a)将基于黏土的混合物造粒以获得骨料的步骤，b)干燥得到的骨料以得到经干燥的骨料的步骤，c)对经干燥的骨料进行热处理的步骤，所述步骤包括两个连续的子步骤：i)在大约900℃至1200℃的温度T1下于还原气氛下进行的第一热处理子步骤，ii)在大约1050℃至1300℃的温度T2下于氧化气氛下进行的第二热处理子步骤，和d)冷却骨料的步骤。
Method for preparing lightweight aggregate
The invention relates to a method for producing lightweight clay-based aggregates, which are particularly suitable for civil engineering, in particular for road applications and buildings. Therefore, the invention relates first to a method for preparing lightweight aggregates, comprising at least the following steps: a) a step of granulating a clay-based mixture to obtain an aggregate, b) a step of drying the obtained aggregate to obtain a dried aggregate, c) a step of heat treating the dried aggregate, and d) a step of heat treating the dried aggregate. The steps comprise two consecutive sub-steps: i) a first heat treatment sub-step performed in a reducing atmosphere at a temperature T1 of about 900 DEG C to 1200 DEG C, ii) a second heat treatment sub-step performed in an oxidizing atmosphere at a temperature T2 of about 1050 DEG C to 1300 DEG C, and d) a step of cooling the aggregate.
本发明涉及用于制备基于黏土的轻骨料的方法，所述骨料特别适用于土木工程，尤其是道路用途和建筑。因此，本发明首先涉及用于制备轻骨料的方法，其包括至少以下步骤：a)将基于黏土的混合物造粒以获得骨料的步骤，b)干燥得到的骨料以得到经干燥的骨料的步骤，c)对经干燥的骨料进行热处理的步骤，所述步骤包括两个连续的子步骤：i)在大约900℃至1200℃的温度T1下于还原气氛下进行的第一热处理子步骤，ii)在大约1050℃至1300℃的温度T2下于氧化气氛下进行的第二热处理子步骤，和d)冷却骨料的步骤。
Method for preparing lightweight aggregate
用于制备轻骨料的方法
GAMBILL DAVID CLAUDE (author)
2024-08-30
Patent
Electronic Resource
Chinese
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