Utilizing Waste Recycled Glass as Sand/Cement Replacement in Concrete
By Bashar Taha, G. Nounu. 2009
210 citations recorded by the source corpus.
The potential use of waste recycled glass in concrete as recycled glass sand (RGS) and pozzolanic glass powder (PGP) was examined in this study. No major difference was found in compressive strength of concrete with the presence of RGS as sand replacement. While, the compressive strength of concrete reduced by 16 and 10.6% at 28 and 364 days respectively when 20% of Portland cement was replaced by PGP. The potential expansion of concrete due to alkali-silica reaction (ASR) was monitored according to the procedure of British Standard BS 812 Part 123:1999. As a siliceous material, the use of RGS as sand replacement in concrete possesses high risk of ASR expansion. Therefore, cracks were observed when RGS was used as sand replacement in concrete without any precautions to minimize this risk. Different materials were used as ASR suppressors to mitigate the potential risk of ASR, such as: ground granulated blastfurnace slag, metakaolin, PGP, and lithium nitrate (LiNO 3 ). The expansion associated with ASR was significantly reduced when the ASR suppressor was used in concrete.
Subfields: Building and Construction, Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/cb39eab0ce60a42e0ab9e20c1a5a6622c7c944ce
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In Building and Construction
In Civil and Structural Engineering
Citations in the corpus
- Waste glass powder as partial replacement of cement for sustainable concrete practice (2017, background): “Studies also focused on used of waste glass as aggregate in concrete production (Rashed, 2014; Taha and Nounu, 2009).”
- Use of waste glass as sand in mortar: Part I – Fresh, mechanical and durability properties (2013, methodology): “The effect of replacement of coarse and fine aggregates or even cement by recycled waste glass on the fresh and mechanical properties of concrete or cementitious composites has been reported [7–10].”
- Use of waste glass as sand in mortar: Part II – Alkali–silica reaction and mitigation methods (2013, methodology): “Several methods have been investigated to mitigate ASR in concrete containing waste glass [10–12], including cement replacement by mineral materials such as fly ash, and addition of fibers and lithium compounds.”
- Waste glass powder as cement replacement in concrete (2014, result): “Previous studies also indicate that the bond between cement paste and fine glass particles was decreased due to the surface smoothness of glass powder (Taha and Nounu 2009; Ali and Al-Tersawy 2012).”
- Feasibility of using recycled glass in architectural cement mortars (2011, result): “Similar to previous studies [10, 37], MK had been proven as an effective ASR suppressor even for the 100% RG in the mix.”
- Green Concrete: By-Products Utilization and Advanced Approaches (2019, background): “The presence of silica was noticed to contribute in forming C-S-H gel during the first seven days of the concrete age [23,25], and it occupied the space of hydration components in concrete [51].”
- Effect of particle size on alkali–silica reaction in recycled glass mortars (2014, background): “They include cementitious material replacement, use of mineral and chemical admixtures, as well as additional reinforcing fibers [7,8,15,16].”