对喀麦隆巴门达手工生产的塑料粘合路面块的岩土力学性能的控制

IF 5.4 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-02-11 DOI:10.1016/j.jestch.2025.101999

Bertrand Tatoh Aziwo , Moses Kuma Mbuh , Irene Bongsiysi Bame , Paul Venyite , Moyouwou Amadou Njoya , Fidelis Toke Ntam , M.V. Nsongka , Ndigui Billong

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引用次数: 0

摘要

在喀麦隆，回收塑料废物作为路面砌块的粘合剂可作为管理城市塑料废物的一种手段。文献中塑料粘合路面块的岩土力学特性的可变性表明，需要澄清的控制因素之间存在广泛的相互作用。本研究利用不同集料(水洗风化花岗岩砂- WS， 0/5玄武岩采石场砂- qs &；5/15玄武岩碎石- g)和骨料组合（50WS50QS, 50WS50G, 50QS50G, 70WS20QS10G）具有不同的低和高密度聚乙烯（L/HDPE）和聚对苯二甲酸乙二醇酯（PET）塑料废物含量。对不同配方的骨料和试样进行了岩土力学试验。在27.5% PET条件下，50WS50QS的平均抗压强度为32.97 MPa，吸水率为2.27%，耐磨性指数为0.07，满足ASTM C-902-22、NF EN 1338:2004和SNI 03-0691-1996标准对行人和轻型车辆道路用砌块的推荐要求。结果表明，骨料的性质和粒度、塑料粘结剂的种类和用量以及生产方法对土工性能均有影响。为给定的骨料和塑性类型找到最佳的塑性粘结剂含量是实现最佳岩土性能的关键。研究结果可以作为生产优质塑料粘合路面块的指南，特别是在那些大部分建筑材料都是通过手工方式生产的国家。

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Controls on the geotechnical properties of plastic-bonded pavement blocks produced by artisanal means in Bamenda, Cameroon

Recycling plastic wastes as binder in pavement blocks can be adopted as a means of managing municipal plastic wastes in Cameroon. The variability in the geotechnical properties of plastic-bonded pavement blocks in the literature suggest a wide interplay of controlling factors that need to be clarified. This study evaluates the controls on the geotechnical properties of pavement blocks produced by artisanal means, using various aggregate (washed weathered granite sand- WS, 0/5 basalt quarry sand-QS & 5/15 basalt gravel -G) and aggregate combinations (50WS50QS, 50WS50G, 50QS50G, 70WS20QS10G) with varying low- and high-density polyethylene (L/HDPE) and polyethylene terephthalate (PET) plastic waste content. Geotechnical tests were carried out on aggregates and samples of various formulations. An average compressive strength of 32.97 MPa, water absorption of 2.27 % and an abrasion index of 0.07 was obtained at 27.5 % PET for 50WS50QS, which meets the recommended requirements of pavement blocks for pedestrian and light vehicular traffic according to ASTM C-902-22, NF EN 1338:2004 and SNI 03-0691-1996 standards. From the results, the geotechnical properties are influenced by nature and size of aggregate, type and amount of plastic-binder and production method. Finding the optimal plastic-binder content for a given aggregate and plastic type is key in achieving optimal geotechnical properties. The results can serve as a guide for the production of quality plastic-bonded pavement blocks especially in nations where a bulk of their construction materials are produced by artisanal means.

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来源期刊

Engineering Science and Technology-An International Journal-Jestech Materials Science-Electronic, Optical and Magnetic Materials

CiteScore

11.20

自引率

3.50%

发文量

153

审稿时长

22 days

期刊介绍： Engineering Science and Technology, an International Journal (JESTECH) (formerly Technology), a peer-reviewed quarterly engineering journal, publishes both theoretical and experimental high quality papers of permanent interest, not previously published in journals, in the field of engineering and applied science which aims to promote the theory and practice of technology and engineering. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology. The scope of JESTECH includes a wide spectrum of subjects including: -Electrical/Electronics and Computer Engineering (Biomedical Engineering and Instrumentation; Coding, Cryptography, and Information Protection; Communications, Networks, Mobile Computing and Distributed Systems; Compilers and Operating Systems; Computer Architecture, Parallel Processing, and Dependability; Computer Vision and Robotics; Control Theory; Electromagnetic Waves, Microwave Techniques and Antennas; Embedded Systems; Integrated Circuits, VLSI Design, Testing, and CAD; Microelectromechanical Systems; Microelectronics, and Electronic Devices and Circuits; Power, Energy and Energy Conversion Systems; Signal, Image, and Speech Processing) -Mechanical and Civil Engineering (Automotive Technologies; Biomechanics; Construction Materials; Design and Manufacturing; Dynamics and Control; Energy Generation, Utilization, Conversion, and Storage; Fluid Mechanics and Hydraulics; Heat and Mass Transfer; Micro-Nano Sciences; Renewable and Sustainable Energy Technologies; Robotics and Mechatronics; Solid Mechanics and Structure; Thermal Sciences) -Metallurgical and Materials Engineering (Advanced Materials Science; Biomaterials; Ceramic and Inorgnanic Materials; Electronic-Magnetic Materials; Energy and Environment; Materials Characterizastion; Metallurgy; Polymers and Nanocomposites)