Fabrication and mechanical properties of waste wood chips/cements composites for paving materials

IF 1.7 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Journal of Wood Chemistry and Technology Pub Date : 2023-04-25 DOI:10.1080/02773813.2023.2202191

Xiao Song, Haiqing Zhou, Ziqiang Liu, Xiaolong Li, Chunpeng Han

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引用次数: 0

Abstract

Abstract In this article, cement-based wood composites (CWC) were prepared by the hydrostatic method using waste wood chips as filler material and cement mortar as the binder. The effects of wood content, wood particle size, and wood modification method on flexural strength, modulus of elasticity, and toughness were experimentally investigated. The results showed that the flexural toughness of the specimens became more pronounced with the increasing wood content and particle size, and the maximum value was 0.742. The flexural toughness of the samples reached the maximum value at 30% wood content after the wood was modified by NaOH and silane coupling agent. The changes in flexural strength and elastic modulus of the specimens were consistent, and both decreased with the increase in wood content. A positive correlation between the flexural strength of the samples and the wood particle size was observed. About 30% wood content, 5.0–10.0 mm wood particle size, and NaOH modification are recommended to prepare the composites. This research can open new avenues for the research and promotion of CWC paving materials.

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废木屑/水泥复合材料的制备及其力学性能

摘要以废木屑为填料，水泥砂浆为粘结剂，采用静水压法制备了水泥基木材复合材料。实验研究了木材含量、木材颗粒大小和木材改性方法对弯曲强度、弹性模量和韧性的影响。结果表明，随着木材含量和粒径的增加，试样的弯曲韧性变得更加明显，最大值为0.742。用NaOH和硅烷偶联剂对木材进行改性后，木材的弯曲韧性在木材含量为30%时达到最大值。试件的弯曲强度和弹性模量的变化是一致的，并且都随着木材含量的增加而降低。观察到样品的弯曲强度与木材颗粒尺寸之间呈正相关。木材含量约30%，5.0-10.0 mm的木材颗粒尺寸和NaOH改性来制备复合材料。这项研究可以为CWC铺路材料的研究和推广开辟新的途径。

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来源期刊

Journal of Wood Chemistry and Technology 工程技术-材料科学：纸与木材

CiteScore

3.70

自引率

20.00%

发文量

审稿时长

3 months

期刊介绍： The Journal of Wood Chemistry and Technology (JWCT) is focused on the rapid publication of research advances in the chemistry of bio-based materials and products, including all aspects of wood-based polymers, chemicals, materials, and technology. JWCT provides an international forum for researchers and manufacturers working in wood-based biopolymers and chemicals, synthesis and characterization, as well as the chemistry of biomass conversion and utilization. JWCT primarily publishes original research papers and communications, and occasionally invited review articles and special issues. Special issues must summarize and analyze state-of-the-art developments within the field of biomass chemistry, or be in tribute to the career of a distinguished researcher. If you wish to suggest a special issue for the Journal, please email the Editor-in-Chief a detailed proposal that includes the topic, a list of potential contributors, and a time-line.