CO2固化对导向水泥板在湿干周期后的长期性能的影响
Matheus R Cabral1, Erika Y Nakanishi2,3, Sérgio F Santos4
1Research Nucleus on Materials for Biosystems (Biosmat), Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, SP, Brazil. matheus-roberto.cabral.1@ulaval.ca.
Environmental science and pollution research international
|March 24, 2025
概括
二氧化碳 (CO2) 固化显著提高了由硬木和软木制成的面向接板的长期耐用性和机械性能. 经过二氧化碳固化板表现出卓越的性能,即使经过广泛的湿燥循环,也符合国际标准.
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.
- 木材复合材料 木材复合材料
背景情况:
- 面向式接板是广泛使用的建筑材料.
- 长期的性能和耐用性对于水泥粘合板来说至关重要.
- 了解替代固化方法的影响对于材料改进至关重要.
研究的目的:
- 评估二氧化碳 (CO2) 固化对定向水泥板的物理和机械性能的影响.
- 评估二氧化碳固化板在循环湿和干燥条件下的长期耐用性.
- 为了研究二氧化碳固化导致的矿物学变化,在水泥结合板.
主要方法:
- 使用硬木 (Eucalyptus spp.) 制造面向型水泥板. 和软木 (Pinus spp.) 的使用情况. 线条. 线条. 在线.
- 应用两种固化方法:控制固化和二氧化碳固化 (12小时),然后和至28日.
- 严格的测试包括100个湿和干燥周期,物理性质评估,机械性质评估 (破裂模块,弹性模块) 和热/矿物学分析.
主要成果:
- 二氧化碳固化导致氧化的减少和碳酸含量的增加.
- 与控制板相比,二氧化碳固化板的物理和机械性能明显改善.
- 二氧化碳固化板在经过100次湿和干燥周期后满足了ISO 8335对水泥板的建议.
- 破裂模量增加了119% (硬木) 和72% (软木);弹性模量增加了179% (硬木) 和121% (软木).
结论:
- 二氧化碳固化是一种有效的方法,可以提高定向水泥板的耐用性和性能.
- 矿物质转化 (增加碳酸) 有助于提高机械强度和稳定性.
- 二氧化碳固化为开发用于建筑应用的更有弹性和更持久的水泥板产品提供了一个有前途的方法.
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