Effect of waste glass aggregate on performance of asphalt micro-surfacing
TL;DR: In this article, the morphology of basalt and waste glass was quantitatively analyzed through aggregate image measurement system to characterize the morphological differences, and the performance of asphalt micro-surfacing materials using waste glass as aggregate and evaluate their performance.
About: This article is published in Construction and Building Materials.The article was published on 2021-11-08. It has received 9 citations till now. The article focuses on the topics: Aggregate (composite) & Abrasion (mechanical).
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TL;DR: In this article , the performance of recycled asphalt mixtures with 50, 60, and 70% RAP content and steel slags was evaluated and the results indicated that incorporating steel slag in these mixtures reveals a desirable performance index in contrast to basalt.
49 citations
TL;DR: In this paper , the authors investigated the influence of erosion factors on the self-healing property of the induction heating asphalt concrete and its mechanism, including time, depth and environment factors.
8 citations
TL;DR: In this paper , an indoor accelerated loading testing methodology was used to investigate the anti-skidding performance attenuation of epoxy asphalt and SBS-modified asphalt mixtures at room and high temperatures.
2 citations
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TL;DR: In this paper , the optimal mix ratio for the preparation of sintered bricks was derived using an orthogonal experiment to derive the optimal mixture ratio for each sintering step.
Abstract: The recycling of construction waste and the use of a new sintering process in the field of sintered bricks can greatly solve the problems of clay resource depletion, soil structure destruction, and high CO2 emissions that always limit the development of the sintered brick field. The study was carried out using an orthogonal experiment to derive the optimal mix ratio for the preparation of sintered bricks, and subsequently, the sintered bricks were prepared using the optimal mix ratio. The experimental results show that the maximum compressive strength of construction waste sintered brick (MRB sintered brick) prepared using high-temperature sintering is 8.1 MPa, and the water absorption is 11. When the waste glass slag is mixed with 10%, it can show a better fluxing effect in the preparation of sintered bricks by mixing construction waste with waste glass slag (MGB sintered bricks), so that the MGB sintered bricks have a higher densification. The compressive strength is 32.9% higher and the water absorption is 3.5% lower than that of MRB sintered brick. MGS sintered bricks were prepared by mixing Yellow River sedimentary sand into MGB sintered bricks. The strength of MGS sintered bricks increased with the replacement rate of Yellow River sedimentary sand, and when the replacement rate of Yellow River sedimentary sand reached 16%, the strength of the MGS sintered bricks increased by 88.9%, and the water absorption rate was reduced by 4.6% compared with the MGB sintered bricks. The sintering mechanism had significant effects on the compressive strength, weathering resistance, and frost resistance of the sintered brick. The microwave sintering process has the characteristics of high efficiency, uniform heating, selective heating, and low thermal inertia, which can increase the compressive strength of MGS sintered brick by 4.6%, reduce the water absorption by 12.9%, shorten the sintering time by 43.6%, and improve the frost resistance.
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TL;DR: It was observed thatSteel slag used as a coarse aggregate improved the mechanical properties of asphalt mixtures and volume resistivity values demonstrated that the electrical conductivity of steel slag mixtures were better than that of limestone mixtures.
405 citations
TL;DR: In this article, the potential of using waste glass as the aggregate material in Portland cement concrete has been examined for controlling acid-silica reaction and achieving concrete of suitable strength and durability.
Abstract: Local recycling pressures are providing an impetus to examine the use of unconventional materials in construction such as waste glass in Portland cement concrete. It is well known that the silica in glass can be highly reactive with the alkalis in cement paste and that this reaction can lead to expansion and cracking of the concrete (alkali-silica reaction or ASR). The potential is examined for controlling ASR and achieving concrete of suitable strength and durability that uses waste glass as the aggregate. Laboratory and field research have been completed with concrete mixtures designed primarily for paving or flat-work applications. Various gradations of glass particle sizes added at various fractions of total aggregate content have been studied. Compressive strength and wet prism expansion are two of the parameters monitored. The study has spanned several years and has revealed both glass aggregate concrete mixtures that show great promise as well as mixtures that fail rapidly. Continued monitoring of the performance of the successful mixes over a period of several more years will provide an important step toward defining those situations where waste glass can be used in concrete.
164 citations
TL;DR: In this article, a brief history of glass, a brief about physics and the technology of glass fabrication, recently developed glasses with special destinations, testing methods and news about glass parts processing (grinding, waterjet processing, laser cutting, nanoimprint lithography etc.).
164 citations
TL;DR: In this paper, three types of fibers including cellulose fiber, polyester fiber and mineral fiber were used as modifiers for asphalt mixture with the dosage of 0.3, 0.4 and 0.5% by the total weight of asphalt mixture.
119 citations
TL;DR: In this paper, the authors presented information on the program and laboratory/field test data, and test results reveal that glass waste is a viable material for asphalt concrete that has been widely used in pavement that offers profound engineering and economic advantages.
Abstract: Taiwan is an island nation with high population density: 23 million people living in a total land area of 30 000 sq. km. The island has transformed from an agricultural society to an industrial one in the past three decades. Coming with the transformation is a cumulated waste problem. Taiwan produces nearly 5 million tons of waste each year, of which 10% is of glass materials. Bureau of Highway Department funded a research program to investigate ways of recycling the glass waste. This report presents information on the program and laboratory/field test data. Materials used in the test program included 85/100 asphalt, Type II modified asphalt, and treated glass waste. Four glass contents: 0, 5, 10, and 15%, in terms of the total aggregate weight, were used in the mixture designs for casting series of 10 cm diameter by 6.35 cm disk specimens. Tests including Marshall stability value, dry/wet moisture damage, skid resistance, light reflection, water permeability, and compaction were carried out in accordance with the ASTM and AASHTO procedures. The test results reveal that glass waste is a viable material for asphalt concrete that has been widely used in pavement that offers profound engineering and economic advantages.
119 citations