基于粘土的先进地质聚合物:结构和材料参数对其性能和应用的影响
Rajwali Khan1, Shahid Iqbal2, Mukhlisa Soliyeva3
1National Water and Energy Center, United Arab Emirates University Al Ain 15551 United Arab Emirates rajwali@uaeu.ac.ae.
RSC advances
|April 23, 2025
概括
基于粘土的地质聚合物水泥为波特兰水泥提供了一种可持续的替代品,拥有增强的机械性能和减少的排放. 最佳的固化条件,如60-80°C,对于最大限度地聚合物强度和耐用性至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 环境科学 环境科学
背景情况:
- 传统的波特兰水泥生产由于高碳排放而对环境产生重大影响.
- 对于可持续和生态友好的建筑材料的需求日益增长.
- 基于粘土的地质聚合物是一个有希望的替代品,减少了环境足迹.
研究的目的:
- 综合研究粘土基地质聚合物水泥的固化条件,结构特征和应用.
- 确定影响地质聚合物强度和性能的关键因素.
- 探索地质聚合物在各种工业和环境应用中的潜力.
主要方法:
- 研究了固化温度和持续时间对地质聚合物强度的影响.
- 评估了微结构增强的预固化处理 (热和湿度管理).
- 评估了先进的固化方法,如自闭体和蒸汽和,以改善机械性能.
- 分析了各种应用,包括复合材料,环境修复和未来的行业.
主要成果:
- 最佳的固化温度 (60-80°C) 提高了地质聚合物的强度,而过度的热量会降低完整性.
- 预固化处理可以提高微观结构密度,减少多孔性.
- 自闭柜和蒸汽和固化方法产生了优越的机械性能,特别是压力强度.
- 地质聚合物在固定危险化合物的环境修复方面表现出有效性.
结论:
- 基于粘土的地质聚合物水泥是一种可行的,可持续的建筑材料,具有卓越的性能.
- 仔细控制固化条件对于优化地质聚合物特性至关重要.
- 地质聚合物在建筑,航空航天,环境修复和潜在的医学领域具有广泛的应用.
更多相关视频
06:34Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites
Published on: September 19, 2020
5.7K
05:36Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
Published on: March 7, 2025
151
相关概念视频
01:17Mortar Properties
93
Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to...
93
01:21Pozzolans
86
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.
Fly ash is...
Fly ash is...
86
01:22Fiber Reinforced Concrete
60
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
60
01:22Types of Cement II
84
Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate...
84
01:30Superplasticizers
69
Superplasticizers are advanced admixtures that enhance the workability of concrete by lowering the water content without compromising the strength of the material. These substances are highly effective water reducers, improving concrete flow, making it easier to work with, and enabling concrete to reach inaccessible areas or densely reinforced sections without mechanical vibration. The key components in superplasticizers are either sulfonated melamine or naphthalene formaldehyde condensates,...
69
01:18Porosity in Cement Paste
95
The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...
The balance of water to cement in the mix is...
95