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Influence of Recycling Waste Glass as fine aggregate on the Concrete Properties

Journal of Renewable Materials 2023年第6期11卷 2925-2940页

作者： Rafal A.Hadi Suhad M.Abd Hadee Mohammed Najm Shaker Qaidi Moutaz Mustafa A.Eldirderi Khaled Mohamed Khedher Department of Civil Engineering Bilad Alrafidain University CollegeDiyala32001Iraq Department of Civil Engineering College of EngineeringUniversity of DiyalaDiyala32001Iraq Department of Civil Engineering Zakir Husain Engineering CollegeAligarh Muslim UniversityAligarh202002India Department of Civil Engineering College of EngineeringUniversity of DuhokDuhok42001Iraq Department of Civil Engineering College of EngineeringNawroz UniversityDuhok42001Iraq Department of Chemical Engineering College of EngineeringKing Khalid UniversityAbha61421Saudi Arabia Department of Civil Engineering College of EngineeringKing Khalid UniversityAbha61421Saudi Arabia Department of Civil Engineering High Institute of Technological StudiesMrezgua University CampusNabeul8000Tunisia

Recent years have witnessed an increase in the quantity of waste glass(WG)across the *** the fine aggregate with WG is one of the steps toward preserving the natural resources of the environment and creating low-cost *** present study is concerned with replacing fine aggregates with glass powder(GP)at(0%,15%,30%,and 50%).It has studied the fresh and hardened properties(compressive strength,tensile strength,hardened density,and slump)for all the mentioned percent *** findings have shown that all mixtures containing GP gave acceptable slump results within the design limits(2–5 cm)according to ACI standard *** has been observed that increasing the proportion of GP led to a decrease in the weight of ***,replacing GP with sand by 30%has led to an increase in the compressive strength by about 2.4%and 12.45%,and the tensile strength by about 2.5%and 26.54%at 7-and 28-d,respectively in comparison to normal concrete.

关键词： Sustainable concrete glass powder fine aggregate partial replacement

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Methods for Improving Volume Stability of Steel Slag as fine aggregate

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Journal of Wuhan University of Technology(Materials Science) 2008年第5期23卷 737-742页

作者：伦云霞 Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education Wuhan University of Technology

Suitable methods for enhancing the volume stability of steel slag utilized as fine aggregate were determined. The effects of steam treatment at 100 ℃ and autoclave treatment under 2.0 MPa on the soundness of steel slag sand were investigated by means of powder ratio, linear expansion, compressive and flexural strength. DTA, EDX, XRD and ethylene glycol methods were employed to analyze both the treated slags and susceptible expansion grains. Experimental results indicate that powder ratio, content of free lime and rate of linear expansion can express the improvement in volume stability of different treated methods. Steam treatment process cannot ultimately prevent specimens from cracking and decrease of strength, but mortar made from autoclave treated slag keeps integration subjected to hot water of 80℃ until 28 d and its strength do not show significant decrement. The hydration of over-burn free lime and periclase phase are the main cause for the disintegration or crack of untreated and steam treated steel slag＇s specimens. Autoclave treatment process is more effective than steam treatment process on enhancement of volume stability of steel slag.

关键词： steel slag fine aggregate volume stability steam treatment process autoclave treatment process

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Recycled glass replacement as fine aggregate in self-compacting concrete

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Frontiers of Structural and Civil Engineering 2013年第4期7卷 419-428页

作者： Yasser SHARIFI Mahmoud HOUSHIAR Behnam AGHEBATI Department of Civil Engineering Vali-e-Asr University of RafsanjanRafsanjanIran

With increasing environmental pressure to reduce solid waste and to recycle as much as possible,the concrete industry has adopted a number of methods to achieve this goal by replacement of waste glass with concrete composition *** to differences in mixture design,placement and consolidation techniques,the strength and durability of Self Compacting Concrete(SCC)may be different than those of conventional ***,replacement of waste glass with fine aggregate in SCC should deeply be investigated compared to conventional *** aim of the present study is to investigate the effect of glass replacement with fine aggregate on the SCC *** present study,fine aggregate has been replaced with waste glass in six different weight ratios ranging from 0%to 50%.Fresh results indicate that the flow-ability characteristics have been increased as the waste glass incorporated to paste ***,compressive,flexural and splitting strengths of concrete containing waste glass have been shown to decrease when the content of waste glass is *** strength reduction of concrete in different glass replacement ratios is not remarkable,thus it can be produced SCC with waste glass as fine aggregate in a standard manner.

关键词： Self Compacting Concrete(SCC) recycle glass fine aggregate fresh and hardened properties

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Assessment of Bholari River Sand for Its Geotechnical Characterization as fine aggregate

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Hydro Science & Marine Engineering 2022年第1期4卷 27-35页

作者： Salman Arif Adnan Khan Sumaira Asif Khan Department of Geology University of KarachiKarachiSindhPakistan

Present study is aimed at assessment of Bholari river sand for its geotechnical characterization and suitability as fine aggregate which is being quarried in Jamshoro district,Sindh,*** this purpose,sand samples(n=11)were collected from quarry sites and main river *** properties reveal that Bholari sand is mainly coarse to fine in size(0.2 mm-5 mm).Average values of fineness modulus,specific gravity,bulk density and void content of collected samples are 2.58,2.56,1659.90 kg/m^(3) and 35.12%respectively which varied within the corresponding permissible ranges of ACI(American Concrete Institute).Carbonate content of about 57.59%is also in agreement with corresponding range for fine *** examination revealed that Bholari River sand mainly comprises of quartz and rock fragments with subordinate limestone *** per classification of Dott(1964),Bholari sand is lithic arenite where quartz(50%)occurs as main mineral followed by rock fragments(30%),feldspars(15%)and other opaque minerals(5%).Texturally,the sediments are angular(77%)to sub-round(33%).All these physical properties lie within the range set by National Highway Authority(NHA)and American Standard of Testing Material(ASTM).It is concluded that Bholari River sand is suitable for use in concrete mixed with cement and asphalt.

关键词： River sand Bholari Geotechnical characterization fine aggregate

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Recycling of waste glass as aggregate in cement-based materials

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Environmental Science and Ecotechnology 2020年第4期4卷 39-46页

作者： Edward Harrison Aydin Berenjian Mostafa Seifan School of Engineering Faculty of Science and EngineeringThe University of WaikatoHamiltonNew Zealand

Glass is a common material made from natural resources such as *** much of the waste glass is recycled to make new glass products,a large proportion is still being sent to *** is a useful resource that is non-biodegradable,occupying valuable landfill *** combat the waste glass that is heading to landfill,alternative recycling forms need to be *** construction industry is one of the largest CO_(2) emitters in the world,producing up to 8% of the global CO_(2) to produce *** use of sand largely depletes natural resources for the creation of mortars or *** review explores the possibilities of incorporating waste glass into cement-based *** was found waste glass is unsuitable as a raw material replacement to produce clinker and as a coarse aggregate,due to a liquid state being produced in the kiln and the smooth surface area,*** results were found when incorporating fine particles of glass in cement-based materials due to the favourable pozzolanic reaction which benefits the mechanical *** was found that 20% of cement can be replaced with waste glass of 20 mm without detrimental effects on the mechanical *** higher than 30% can cause negative impacts as insufficient amounts of CaCO_(3) remain to react with the silica from the glass,known as the dilution *** the fine aggregate replacement for waste glass increases over 20%,the mechanical properties decrease proportionally;however,up to 20% has similar results to traditionally mixes.

关键词： Waste glass fine aggregate Sand replacement Pozzolanic reactivity Cement Recycling alternative

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