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Updated: Jul 5, 2025

In Vitro Scratch Assay to Demonstrate Effects of Arsenic on Skin Cell Migration
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基于飞的含水泥材料的长期稳定性风险评估:动态和半动态漏

Mingliang Zhang1, Ying Wu1, Yinmei Li1

  • 1College of Agriculture and Biological Science, Dali University, Dali, 671003, Yunnan, China; Key Laboratory of Ecological Microbial Remediation Technology of Yunnan Higher Education Institutes, Dali, 671003, Yunnan, China.

Environmental pollution (Barking, Essex : 1987)
|January 16, 2024
PubMed
概括

这项研究评估了基于飞灰的水泥材料在酸雨下的长期稳定性. 结果显示,地质聚合物有效地稳定重金属,减少废物再利用的环境风险.

关键词:
动态洗是一种动态的洗.重金属是一种重金属.美国MSWIFAIFA风险评估 风险评估 风险评估半动态浸出 半动态浸出它们的pH值为pH.

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Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
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Deleterious Substances in Aggregate

Deleterious substances in aggregates can be detrimental to the quality and durability of concrete. These substances include organic impurities like loam, which interfere with cement hydration and are usually present in the sand. These prevent a good bond between aggregate and cement paste. Organic impurities can be detected using the colorimetric test, where the darkness of a solution after agitation indicates the level of organic content.
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Soundness of Cement01:17

Soundness of Cement

The soundness of cement refers to the ability of cement paste to retain its volume after setting. Unsound cement can lead to expansion and structural damage due to the presence of free lime, magnesia, and calcium sulfate. Free lime hydrates very slowly, expanding and causing unsoundness, which is difficult to detect because it intercrystallizes with other compounds. Magnesia also reacts with water, forming crystals that can disrupt the cement's structure. Calcium sulfate can create...
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Strength and Heat of Hydration01:29

Strength and Heat of Hydration

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Alkali Aggregate Reaction in Concrete

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