Influence of fineness of ground recycled glass on mitigation of alkali–silica reaction in mortars

2015 ◽  
Vol 81 ◽  
pp. 257-267 ◽  
Author(s):  
Kaveh Afshinnia ◽  
Prasada Rao Rangaraju
2018 ◽  
Vol 163 ◽  
pp. 03002 ◽  
Author(s):  
Chun-Hsing Ho ◽  
Anas Almonnieay ◽  
Khin Kyaw ◽  
Phoo Myat Sandy Maung

Using recycled glass in concrete applications decreases the amount of glass in landfills and substitutes for expensive aggregates in the concrete mix. However, there has been a concern on recycled glass with smooth surfaces that would result in a drop in strength and in particular a reduction of an already low ductility. Thus, in many design aspects, the use of recycled glass in concrete is limited up to 30% by weight due to concern on concrete strength reduction. The current manufacturing technology in the recycling glass has been grown and evolved through which recycled glass has been processed to exhibit the following features: basically zero water absorption, excellent hardness (great abrasion resistance), high durability to resist extreme weather conditions, etc. The paper challenges the currently used recycled glass mixtures and presents new mix design principles for concrete mixed with 10%, 20%, 30%, 50%, and 100% recycled glass as replacements of nature sand and Portland cement to assess (1) strength changes and (2) resistance to alkali silica reaction (ASR). Aggregate, water reducer, hydration stabilizer, mid-range water reducer, fiber, and viscosity modifier were prepared with varying dosages of recycled glass. A series of scanning electron microscope (SEM) imaging were performed to evaluate the resistance of recycled glass specimens to ASR. The paper concludes that the use of recycled glass as an alternative aggregate and cement binder in the concrete mixtures show promising performance in both tensile splitting strength and ASR.


2020 ◽  
Vol 330 ◽  
pp. 01050
Author(s):  
Zineb Douaissia ◽  
Mouloud Merzoud ◽  
Amar Benazzouk

In order to value glass in the production of cement and concrete. We have verified the effect of the progressive substitution of 10% to 50% of the volume of cement by glass powder and silica fume on the mechanical properties of hardened mortars, we have also verified their inhibitory effect of the Alkali Silica Reaction (ASR) by studying the variation of mass, expansion, opening and density of cracks as well as the loss of mechanical performance of mortars undergoes a test that accelerates the ASR by autoclave. We have concluded that the use of these mineral admixtures can improve the mechanical performance of mortars, and it can reduce expansions and mechanical performance losses due to ASR.


2018 ◽  
Vol 172 ◽  
pp. 3621-3633 ◽  
Author(s):  
Shuaicheng Guo ◽  
Qingli Dai ◽  
Xiao Sun ◽  
Xianghui Xiao ◽  
Ruizhe Si ◽  
...  

2001 ◽  
Author(s):  
Luis J. Malvar ◽  
Greg D. Cline ◽  
Doug F. Burke ◽  
R. Rollings ◽  
Joey Greene ◽  
...  

2018 ◽  
Author(s):  
Sankaran Mahadevan ◽  
Sarah Miele ◽  
Parnav Karve ◽  
Julia Finfrock ◽  
Garrett Thorne ◽  
...  

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