Alkali-Silica. Reaction Of Foamed. Concrete Containing. Waste Glass as Aggregate

Abstract This research focused on examining Alkali-Silica. Reaction (ASR) of foamed concrete mixes containing1different1types of1crushed waste glass (CWG) with different chemical compositions. The reactivity was determined in sodium hydroxide solution by adopting mortar bar test. Four types of waste glass with different particle sizes and different percentages content were used. From the test results of recorded expansion of these mixes, it was noticed that the coarse glass resulted in more expansion than that of fine glass. Lead-silicate1glass (CR) exhibits the maximum expansion followed by1soda-lime1glass (SL) and boro-silicate glass (BS), while less expansion was recorded in mixes with green glass (GG). As compared to reference mix (FC), it was noted that the mixes with crushed waste glass (SL), (BS), and (CR) undergo notable expansion, while the expansion of the mixes with (GG) slightly increased compared to the reference mix (FC).

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Examination of Mechanical Properties and Temperature Resistance of Epoxy Coatings Filled with Secondary Raw Materials

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.861.32 ◽

2016 ◽

Vol 861 ◽

pp. 32-39

Author(s):

Jakub Hodul ◽

Jana Hodná ◽

Rostislav Drochytka

Keyword(s):

Raw Materials ◽

Waste Glass ◽

Silica Sand ◽

Test Results ◽

Epoxy Coatings ◽

Temperature Resistance ◽

Secondary Raw Materials ◽

Pure Silica ◽

Clean Environment ◽

Fine Glass

Epoxy coatings are used mainly in the construction especially where it is necessary to increase the resistance of concrete floors against mechanical wear, to increase chemical resistance, to prevent dusting and to ensure hygienically clean environment. Epoxy coating is a composite material that consists of epoxy resin cured mainly by polyamine hardener and filler. As a filler is currently used pure silica sand Dorsilit ground to below 0.063 mm and for more demanding applications fine glass flakes with a high proportion of SiO2. The aim of this work is to experimentally examine the possibility of using secondary raw materials as fillers into three types of polymer epoxy coatings, where it seems the most appropriate utilization is waste glass with a high content of SiO2. Based on the evaluation of the test results of tensile properties, Shore hardness and temperature resistance the possibility of replacing the commonly used filler by finely ground waste glass is assessed.

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Partial and Full Replacement of Silica Sand by Fine Recycled Glass in Cementitious Composites

Wasit Journal of Engineering Sciences ◽

10.31185/ejuow.vol6.iss2.96 ◽

2018 ◽

Vol 6 (2) ◽

pp. 91-98

Author(s):

Sallal R. Abid ◽

Sajjad H. Ali ◽

Ahmed L. Kadhum ◽

Yasir H. Daek

Keyword(s):

Compressive Strength ◽

Construction Industry ◽

Waste Glass ◽

Modulus Of Rupture ◽

Silica Sand ◽

Cementitious Composites ◽

Test Results ◽

Recycled Glass ◽

Fine Glass ◽

Adequate Management

One of the major concerns currently and within the close future is the adequate management and efficient reuse and recycling of wastes, which reduces the natural sources and energy consumption. Millions of tons of waste glass are discharged around the world annually. One of the successful policies of the recycling of waste glass is the use in the construction industry where it can be used as aggregate or cement replacement. In the current study, fine recycled glass with granular size of 0.075 to 0.3 mm was used as silica sand replacement in cementitious composites incorporated fly ash and no coarse aggregate. Cube and prism specimens were prepared with four replacement ratios of 0, 25, 50, and 100% to evaluate the compressive strength, the modulus of rupture, and the expansion. The test results showed that 50% and 100% replacements of silica sand by fine glass enhanced both the compressive strength and the modulus of rupture. For mixtures with 100% fine recycle glass, the compressive strength and the modulus of rupture increased by 25% and 33.6%, respectively, compared to mixtures with 100% silica sand. Moreover, the expansion was found to be reduced by approximately 30% as the silica sand was fully replaced by fine glass.

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The Influence of Replacing Sand with Waste Glass Particle on the Physical and Mechanical Parameters of Concrete

Civil Engineering Journal ◽

10.28991/cej-03091101 ◽

2018 ◽

Vol 4 (7) ◽

pp. 1646

Author(s):

Hamed Dabiri ◽

Mohammad Kazem Sharbatdar ◽

A. Kavyani ◽

M. Baghdadi

Keyword(s):

Compressive Strength ◽

Glass Particle ◽

Waste Glass ◽

Waste Materials ◽

Alkali Silica Reaction ◽

Colored Glass ◽

Mechanical Parameters ◽

Practical Solution ◽

Compressive Strength Of Concrete ◽

Harmful Effects

Glass is a special type of materials which is widely used in various forms and colors for different usages. Colored bottles comprise a large part of waste glass. To reduce the destructive effects of waste glass on the environment, it might be recycled. However, some indecomposable waste materials are buried. This will have harmful effects on the environment. A practical solution for reducing non-recyclable waste colored glass is using them as replacements for materials in other industries such as concrete industry. The effect of replacing aggregate with waste glass particle on the compressive strength and weight of concrete is investigated in this study. To achieve the goal, totally 27 cubic specimens were created; 6 specimens were made of concrete, while waste glass particle was added to the mix of other specimens. To prevent Alkali Silica Reaction (ASR), Microsilica was added to the mix of specimens containing glass. Generally, Results indicated that replacing aggregate with glass particle more than 30% lead to increment in compressive strength of concrete. The weight of concrete remains almost the same in all of the specimens. Briefly, based on the results it could be concluded that the optimum percentage for replacing aggregate with glass particle is 50%.

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Effect of Environmental Conditions on Expansion of Mortar-bar by Alkali-Silica Reaction

International Journal of Highway Engineering ◽

10.7855/ijhe.2011.13.3.001 ◽

2011 ◽

Vol 13 (3) ◽

pp. 1-6

Author(s):

Seong-Kwon Kim ◽

Kyong-Ku Yun ◽

Seung-Ho Hong ◽

Moon-Sik Kang

Keyword(s):

Environmental Conditions ◽

Alkali Silica Reaction ◽

Mortar Bar

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How does fly ash mitigate alkali–silica reaction (ASR) in accelerated mortar bar test (ASTM C1567)?

Cement and Concrete Composites ◽

10.1016/j.cemconcomp.2012.11.004 ◽

2013 ◽

Vol 37 ◽

pp. 143-153 ◽

Cited By ~ 71

Author(s):

Seyed M.H. Shafaatian ◽

Alireza Akhavan ◽

Hamed Maraghechi ◽

Farshad Rajabipour

Keyword(s):

Fly Ash ◽

Alkali Silica Reaction ◽

Accelerated Mortar Bar Test ◽

Bar Test ◽

Mortar Bar

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Mitigation Effect of Waste Glass Powders on Alkali–Silica Reaction (ASR) Expansion in Cementitious Composite

International Journal of Concrete Structures and Materials ◽

10.1186/s40069-018-0299-7 ◽

2018 ◽

Vol 12 (1) ◽

Cited By ~ 6

Author(s):

Guojun Ke ◽

Wengui Li ◽

Ruyi Li ◽

Yuelin Li ◽

George Wang

Keyword(s):

Waste Glass ◽

Alkali Silica Reaction ◽

Cementitious Composite ◽

Glass Powders

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Preliminary Characterization of Novel LDPE-Based Wear-Resistant Composite Suitable for FDM 3D Printing

Materials ◽

10.3390/ma12162520 ◽

2019 ◽

Vol 12 (16) ◽

pp. 2520 ◽

Cited By ~ 2

Author(s):

Piotr Olesik ◽

Marcin Godzierz ◽

Mateusz Kozioł

Keyword(s):

3D Printing ◽

Tensile Tests ◽

Waste Glass ◽

Scanning Calorimetry ◽

Path Direction ◽

Pin On Disc ◽

Static Tensile ◽

Fine Glass ◽

3D Printed ◽

Ldpe Composites

Low-density polyethylene (LDPE) composites reinforced with finely powdered waste glass were identified as a potential material for 3D printed structures for use in low-duty frictional applications. A recently published 3D printing model was used to calculate the limits in the filament feed rate and printing speed. Tribological tests (pin-on-disc method) of the printed composites were performed for different print-path directions. Differential scanning calorimetry (DSC) was performed on the samples and the composites showed a higher crystallinity compared with LDPE, which partially explains the higher elastic modulus of the composites determined during static tensile tests. Using a fine glass powder as reinforcement improved the wear resistance of LDPE by 50% due to the formation of a sliding film on the sample’s surface. An evident effect of friction direction vs. the printed path direction on wear was found; which was likely related to differences in the removal of friction products from the friction area for different print-path directions. The LDPE composites with fine waste glass particles are promising materials for low-duty frictional applications and should be the subject of further research.

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Effects of Geopolymer Concrete Fly Ash Based on Alkali Silica Reaction (ASR)

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.567.405 ◽

2014 ◽

Vol 567 ◽

pp. 405-410 ◽

Cited By ~ 5

Author(s):

Muhd Fadhil Nuruddin ◽

Siti Nooriza Abd. Razak

Keyword(s):

Fly Ash ◽

Chemical Reaction ◽

Length Change ◽

Alkali Silica Reaction ◽

Geopolymer Concrete ◽

Alkali Silica Reactivity ◽

Mortar Bar ◽

Class F Fly Ash ◽

Strength And Durability ◽

Standard Limit

Alkali Silica Reaction (ASR) is a chemical reaction which affects both strength and durability of concrete. ASR occurs due to a chemical reaction between alkali oxides presents in the cement paste and reactive silica in aggregate. This reaction could lead to the volume expansion, cracking, loss of strength and potential failure of the concrete. This research aimed to investigate the potential alkali silica reactivity on geopolymer concrete. Specimens were prepared using Class F fly ash as binder while sodium hydroxide and sodium silicate as alkaline activators. ASTM C1260 was adopted to determine potential alkali silica reactivity by measuring the length change of mortar bar as well as the decrease in compressive strength test. Results show that fly ash based geopolymer concrete is less vulnerable to ASR as the expansion of mortar bar is below the threshold of ASTM standard limit which is 0.10% of expansion. In term of strength, the geopolymer concrete did not reduced instead it increased. From the results, it has indicated that both tests ensure that the durability of geopolymer concrete is excellent and can withstand a long life span.

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Effect of lithium nitrate on the reaction between opal aggregate and sodium and potassium hydroxides in concrete over a long period of time

Bulletin of the Polish Academy of Sciences Technical Sciences ◽

10.1515/bpasts-2017-0085 ◽

2017 ◽

Vol 65 (6) ◽

pp. 773-778 ◽

Cited By ~ 3

Author(s):

J. Zapała-Sławeta ◽

Z. Owsiak

Keyword(s):

Electron Microscopy ◽

Pore Solution ◽

Alkali Silica Reaction ◽

Lithium Nitrate ◽

X Ray ◽

Long Period ◽

Chemical Admixtures ◽

Mortar Bar ◽

Sodium And Potassium ◽

Scanning Electron

AbstractAlkali-silica reaction (ASR) is a reaction between amorphous or poorly crystallized siliceous phase, present in aggregates, and sodium and potassium hydroxides in the pore solution of concrete. Chemical admixtures such as lithium compounds are known to have high potential of inhibiting ASR. The aim of this study was to determine the effect of lithium nitrate on ASR in mortars containing high reactive opal aggregate over a long period of time. Mortar bar expansion tests were performed and microstructures of mortar bars were observed by scanning electron microscopy coupled with an energy dispersive X-ray microanalyser. Results from this study showed that effectiveness of lithium nitrate in mitigating ASR was limited over a long period of time. A larger amount of ASR gel which was formed in the presence of lithium nitrate indicated that the deterioration processes intensify within longer periods of time, which so far has not been observed in literature. Microscopic observation confirmed the presence of alkali-silica gel and delayed ettringite in mortars with lithium nitrate.

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