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用浮石、火山灰和废方解石粉改性的水泥浆体的物理力学性能及水化过程

Physico-Mechanical Properties and Hydration Processes of Cement Pastes Modified with Pumice, Trass and Waste Chalcedonite Powder.

作者信息

Spychał Edyta, Vyšvařil Martin

机构信息

Department of Technology and Organization of Construction, Faculty of Civil Engineering and Architecture, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland.

Institute of Chemistry, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00 Brno, Czech Republic.

出版信息

Materials (Basel). 2023 Dec 31;17(1):236. doi: 10.3390/ma17010236.

DOI:10.3390/ma17010236
PMID:38204089
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10780045/
Abstract

In this article, the physico-mechanical properties and hydration processes of cement pastes containing three additives are introduced. Cement was replaced with pumice, trass, waste chalcedonite powder at 30% by mass and a combination of pumice or trass and waste chalcedonite powder in the amounts of 15% each. The main aim of this research was to assess the properties of two- or three-component binders to save cement in these binders. Rheological properties such as consistency, yield stress, viscosity and thixotropy were determined, in addition to porosity, 7-day and 28-day flexural and compressive strength and bulk density. Additionally, the heat evolution and degree of hydration of the tested pastes were compared. The use of all additives resulted in a reduction in the consistency of the tested pastes. The highest compressive strength measured after 28 days was observed for the cement paste with a 30% content of waste chalcedonite powder, which is related to it having the best pozzolanic activity of the materials used. The results of this research have confirmed that pumice, trass and waste chalcedonite powder can be used as components of blended Portland cements.

摘要

本文介绍了含有三种添加剂的水泥浆体的物理力学性能和水化过程。用质量分数为30%的浮石、火山灰、废玉髓粉替代水泥，并用质量分数均为15%的浮石或火山灰与废玉髓粉的组合替代水泥。本研究的主要目的是评估二元或三元胶凝材料的性能，以节约这些胶凝材料中的水泥。除了孔隙率、7天和28天的抗折和抗压强度以及堆积密度外，还测定了稠度、屈服应力、粘度和触变性等流变性能。此外，还比较了测试浆体的热释放和水化程度。所有添加剂的使用均导致测试浆体的稠度降低。28天后测得抗压强度最高的是废玉髓粉含量为30%的水泥浆体，这与其具有所用材料中最佳的火山灰活性有关。本研究结果证实，浮石、火山灰和废玉髓粉可作为波特兰复合水泥的组分。

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本文引用的文献

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Materials (Basel). 2023 May 8;16(9):3602. doi: 10.3390/ma16093602.
2
Effect of the Partial Replacement of Cement with Waste Granite Powder on the Properties of Fresh and Hardened Mortars for Masonry Applications.用废弃花岗岩粉部分替代水泥对用于砌筑的新拌砂浆和硬化砂浆性能的影响。
Materials (Basel). 2022 Dec 19;15(24):9066. doi: 10.3390/ma15249066.
3
Effect of Cellulose Ether and Starch Ether on Hydration of Cement Processes and Fresh-State Properties of Cement Mortars.
纤维素醚和淀粉醚对水泥水化过程及水泥砂浆新拌性能的影响
Materials (Basel). 2022 Dec 8;15(24):8764. doi: 10.3390/ma15248764.
4
Effect of Basalt Powder on Hydration, Rheology, and Strength Development of Cement Paste.玄武岩粉末对水泥净浆水化、流变性能及强度发展的影响
Materials (Basel). 2022 Dec 3;15(23):8632. doi: 10.3390/ma15238632.
5
Rheological and Durability Properties of Self-Compacting Concrete Produced Using Marble Dust and Blast Furnace Slag.使用大理石粉和高炉矿渣生产的自密实混凝土的流变学和耐久性性能
Materials (Basel). 2022 Feb 27;15(5):1795. doi: 10.3390/ma15051795.
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Implementation of Alternative Mineral Additives in Low-Emission Sustainable Cement Composites.低排放可持续水泥复合材料中替代矿物添加剂的应用
Materials (Basel). 2021 Oct 26;14(21):6423. doi: 10.3390/ma14216423.
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Granite Powder vs. Fly Ash for the Sustainable Production of Air-Cured Cementitious Mortars.用于气硬性水泥砂浆可持续生产的花岗岩粉与粉煤灰对比
Materials (Basel). 2021 Mar 4;14(5):1208. doi: 10.3390/ma14051208.
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Influence of Granite Powder on Physico-Mechanical and Durability Properties of Mortar.花岗岩粉末对砂浆物理力学性能及耐久性的影响
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