International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 08 | Aug 2022
p-ISSN: 2395-0072
www.irjet.net
DURABILITY STUDIES OF SELF- COMPACTING CONCRETE WITH RECYCLED COARSE AGGREGATE AND WASTE GLASS POWDER Parvathy Sanjeev1, Chithira Krishnakumar2 1M.
Tech student, Structural Engineering, universal Engineering college, Thrissur, Kerala professor, Civil Department, universal Engineering college, Thrissur, Kerala ---------------------------------------------------------------------***--------------------------------------------------------------------microns has the pozzolanic qualities to function as a Abstract - Incorporating waste and recycled materials in 2 Assistant
concrete provides not only a long-term benefit, but also increased resistance to special circumstances that concrete structures face, such as fire. The crushed concrete aggregate has been used as a replacement to natural aggregate in SCC. Waste glass powder can be utilized as partial replacement of cement. If some of the waste materials can be suitable for concrete making it can reduce the cost of construction. The current study investigated the performance of incorporating recycled coarse aggregate (RCA) and two unprocessed waste powder materials on the residual mechanical properties of self-compacting concrete (SCC). SCC mixtures have been created by adding to cement mass with up to 25% waste fly ash (WFA) and replacing cement 10%, 20%, 30% using waste glass powder, as well as replacing the coarse natural aggregate (NA) with up to 50% RCA. Replacing cement by 10% waste glass powder and 50% RCA gives more strength. The durability properties were investigated, such as water absorption tests, and carbonation tests, and were compared with conventional SCC. Results indicated durability of concrete mix. Key Words: Self Compacting Concrete, Recycled Concrete, Waste Glass Powder, Waste Fly Ash, Natural Aggregate
supplementary cementitious material (SCM) and can be sufficiently compared to other proven SCMs like fly ash and silica fumes.
2. MATERIALS 2.1 Cement Use of Ordinary Portland Cement (OPC) of Grade 53 according to IS specifications is made in this investigation. Table-1: Properties of OPC 53 grade cement
Properties
Test results
Technical reference
Specific gravity
3.12
IS4031(PART 11): 1988
Consistency (%)
30
IS4031(PART 4): 1988
Fineness of cement (%)
4.7
Initial setting time (minutes)
78
1.INTRODUCTION The availability of skilled-labor in the construction sector decreased throughout the 1980s. The desire for concrete that could address issues with poor craftsmanship was sparked by this circumstance. As a result, self-compacting concrete was created. The following are the major causes of concrete deterioration today, reinforcing steel corrosion, frost action in cold climates, and physicochemical effects in aggressive environments. The permeability of concrete, rather than normal variations in the composition of port land cement, is widely accepted as the key to all durability issues. Despite having superior fire resistance than the majority of construction materials, concrete loses strength and may even crack when exposed to high temperature. A potential solution for sustainable development is the partial substitution of coarse natural aggregate (NA) with coarse recycled concrete aggregate (RCA). The impact of using waste glass powder in place of cement in concrete has been the subject of numerous investigations. Milled glass with particles smaller than 75 © 2022, IRJET
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IS4031(PART 2): 1996 IS4031(PART 5): 1988
2.2 Fine Aggregate With the exception of grading requirements, fine aggregates should meet the requirements of ASTM C33. Variations in fine aggregate quality will have a significant impact on overall quality of SCC. M-Sand is less than 4.75mm in size. M-sand is used in this study as fine aggregate. Table 2 gives properties of fine aggregates. Table-3: Properties of Fine Aggregate Properties
Test results
Specific gravity
2.52
Fineness modulus
3.84
Free surface moisture
Nil
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