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Production of Sintered Fine Sediment Lightweight Aggregate

机译：烧结细泥轻质骨料的生产

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摘要

This paper investigates the production process and mechanical properties of lightweightaggregates made from fine sediments collected from the Shih-Men Reservoir in Taiwan.Approximately 95% of the reservoir's fine sediment particles pass through a No.200 sieve.This sediment is composed of 61% of SiO_2, 18% Al_2O_3, and 6.5% Fe_2O_3. In this study, thefine sediments were granulated and heated to the fusion point of about 1100°C to 1200°Cin a high temperature oven. After heated, the grains became soft grew 10% to 60% largerthan their original volume. In these experiments, the lightweight aggregates were sinteredinto a single nominal particle size (11 mm) and 3 specific weight ranges (0.8～1.0, 1.0～1.2,1.2～1.4). The test results show that using ultra-fine sediments as the raw material isadvantageous in forming surface-glassed lightweight aggregates with reduced waterabsorption capacity and higher compressive strength. The water absorption adsorptioncapacity of the lightweight aggregates varied from 9% to 13%. The particle strength wasbetween 7 MPa and 17 MPa.
机译：本文研究了轻量化的生产过程和机械性能 由台湾石门水库收集的精细沉积物制成的骨料。 大约95％的储层细沙颗粒通过200号筛网。 该沉积物由61％的SiO_2、18％的Al_2O_3和6.5％的Fe_2O_3组成。在这项研究中， 将细小的沉淀物造粒并加热到约1100°C至1200°C的融合点 在高温烤箱中。加热后，谷物变软，长出10％至60％ 超过原本的音量在这些实验中，烧结轻质骨料 分为单个标称粒径（11毫米）和3个比重范围（0.8〜1.0、1.0〜1.2， 1.2〜1.4）。试验结果表明，采用超细沉积物为原料 有利于减少水分形成表面玻璃轻质骨料 吸收能力和更高的抗压强度。吸水吸附 轻质骨料的产能从9％到13％不等。颗粒强度为 介于7 MPa和17 MPa之间。

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