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Updated: Jun 11, 2025

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

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带有固体废物的活性材料的基本设计,使用机器学习

Junfei Zhang1, Shenyan Shang1, Zehui Huo1

  • 1School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China.

Materials (Basel, Switzerland)
|September 28, 2024
PubMed
概括

机器学习使用飞灰 (FA) 和颗粒高炉渣 (GBFS) 准确预测活性材料 (AAM) 的强度. 水含量和固化期是开发高性能,可持续建筑材料的关键因素.

关键词:
活性化材料是一种活性化材料.飞行灰飞行灰是什么意思颗粒状高炉渣是一种颗粒状高炉渣.机器学习是机器学习.强度强度强度强度强度强度强度强度强度强度强度强度强

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Alkali Aggregate Reaction in Concrete01:26

Alkali Aggregate Reaction in Concrete

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Sample Preparation for Analysis: Advanced Techniques

Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
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Pozzolans

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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Qualitative Analysis03:46

Qualitative Analysis

For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
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Design Example: Aggregate Gradation01:24

Design Example: Aggregate Gradation

The right type and quality of aggregates are crucial for concrete as they significantly influence its properties, mix proportions, and cost-effectiveness. If different sources are available for sand, the commonly used fine aggregate in concrete, the selection of sand is primarily based on its gradation.
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