طراحی پایدار بتن منفذدار
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طراحی پایدار بتن منفذدار

عنوان فارسی مقاله: طراحی پایدار بتن منفذدار با استفاده از شیشه های زباله و مصالح خرده بتن بازیافت شده
عنوان انگلیسی مقاله: Sustainable design of pervious concrete using waste glass and recycled concrete aggregate
مجله/کنفرانس: مجله تولید پاک – Journal of Cleaner Production
رشته های تحصیلی مرتبط: مهندسی عمران، مهندسی محیط زیست
گرایش های تحصیلی مرتبط: سازه، مهندسی عمران محیط زیست، بازیافت و مدیریت پسماند
کلمات کلیدی فارسی: بتن منفذدار، شیشه زباله، مصالح خرده بتن بازیافت شده، بخار سیلیسی، نفوذپذیری، هدایت حرارتی
کلمات کلیدی انگلیسی: Pervious concrete، Waste glass، Recycled concrete aggregate، Silica fume، Permeability، Thermal conductivity
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.jclepro.2019.06.260
دانشگاه: Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 7.096 در سال 2018
شاخص H_index: 150 در سال 2019
شاخص SJR: 1.620 در سا ل2018
شناسه ISSN: 0959-6526
شاخص Quartile (چارک): Q1 در سال 2018
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 11
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E13212
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


Graphical abstract


1. Introduction


2. Experimental design


3. Results and discussion


4. Discussion


5. Conclusions


Acknowledgements


References

نمونه متن انگلیسی مقاله

Abstract


This study designed an eco-friendly pervious concrete (PC) product using waste glass cullet (WGC) and recycled concrete aggregate (RCA) by dry-mixed compaction technique. The mechanical properties, water permeability behavior and related pore structure characteristics, thermal conductivity of the PCs were determined. The experimental results showed that the use of silica fume in the cement paste was effective to compensate for the low compressive strength of the PCs due to the use of narrowed graded aggregates without the incorporation of fine particles (less than 2.36 mm). Although the incorporation of recycled aggregates (i.e. WGC and RCA) into the PCs led to reductions in compressive strength, the water permeability of the PCs was improved, especially for the PCs prepared with WGC, as the use of WGC was conducive to improving the water permeability due to the negligible water absorption nature and smooth surface of glass cullet. Another encouraging result indicated that the PCs comprising 50% WGC as the fine aggregate and 50% RCA as the coarse aggregates could achieve satisfactory strength and permeability, which could largely meet the requirement of the standard (JIS A 5371) for permeable pedestrian pavers. The appropriate blending of the selected size of WGC (2.36e5 mm) and RCA (5 e10 mm) to produce a desirable pore structure in the PCs were responsible for the good performance. In addition, the low thermal conductivity of the produced PCs provided an opportunity to use the PC as partition block materials for saving energy consumption of buildings.


Introduction


The use of pervious concrete (PC) is a unique and effective means to address several important environmental issues, including improving the recharge of groundwater, reducing stormwater runoff, promoting tree survival by providing air and water, improving water quality and reducing the heat island effect, etc. (Tennis et al., 2004). Especially, in Hong Kong, heavy rainfall could happen commonly (about 2400 mm per annum of rainfall are recorded on average) (DSD, 2018). How to manage the heavy rainfall becomes a crucial issue for Hong Kong due to the densely built up urban areas and the mountainous terrain which further exacerbates the risk of flooding. Hence, it is necessary to undertake flood and waterlogging mitigation measures to improve the flow capacity. The U.S. Environmental Protection Agency identified PC pavement as one of the effective Best Management Practices for stormwater management as PC has sufficient void space to allow rapid percolation of water through the pavement (Tennis et al., 2004; DEP, 2006). Therefore, PC pavement has been extensively applied in the parking lots, drainage layers in exterior areas, residential street parking lanes, walkways/sidewalks, bike paths and pavements with minimal heavy truck traffic. Usually, PC consists of Portland cement (supplementary cementitious materials sometimes are used), aggregates and water. The difference from conventional concrete is that PC contains no fine aggregates and a lesser amount of cement paste is used to fill the voids between the aggregate particles. As a result, open cells (pores) are formed and the induced high porosity of PC leads to good internal drainage and infiltration.

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