scholarly journals Utilisation of Waste Plastics as a Partial Replacement of Coarse Aggregate in Concrete Blocks

2015 ◽  
Vol 8 (12) ◽  
Author(s):  
S. Vanitha ◽  
V. Natarajan ◽  
M. Praba
Keyword(s):  
Coarse Aggregate ◽  
Partial Replacement ◽  
Waste Plastics ◽  
Concrete Blocks

scholarly journals Use of Recycled Tyre Rubber in Non-structural Concrete

2018 ◽  
Vol 203 ◽  
pp. 06001
Author(s):  
Muhammad Bilal Waris ◽  
Hussain Najwani ◽  
Khalifa Al-Jabri ◽  
Abdullah Al-Saidy
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Coarse Aggregate ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Structural Concrete ◽  
Cement Ratio ◽  
Mix Proportion ◽  
Water To Cement Ratio ◽  
Concrete Blocks

To manage tyre waste and conserve natural aggregate resource, this research investigates the use of waste tyre rubber as partial replacement of fine aggregates in non-structural concrete. The research used Taguchi method to study the influence of mix proportion, water-to-cement ratio and tyre rubber replacement percentage on concrete. Nine mixes were prepared with mix proportion of 1:2:4, 1:5:4 and 1:2.5:3; water-to-cement ratio of 0.25, 0.35 and 0.40 and rubber to fine aggregate replacement of 20%, 30% and 40%. Compressive strength and water absorption tests were carried out on 100 mm cubes. Compressive strength was directly proportional to the amount of coarse aggregate in the mix. Water-to-cement ratio increased the strength within the range used in the study. Strength was found to be more sensitive to the overall rubber content than the replacement ratio. Seven out of the nine mixes satisfied the minimum strength requirement for concrete blocks set by ASTM. Water absorption and density for all mixes satisfied the limits applicable for concrete blocks. The study indicates that mix proportions with fine to coarse aggregate ratio of less than 1.0 and w/c ratio around 0.40 can be used with tyre rubber replacements of up to 30 % to satisfy requirements for non-structural concrete.

scholarly journals EXPERIMENTAL STUDY ON THE STRENGTH DEVELOPMENT ON CONCRETE BY PARTIAL REPLACEMENT OF COARSE AGGREGATES BY WASTED TRUCK TYRE PIECES

2017 ◽  
Vol 5 (11) ◽  
pp. 414-424
Author(s):  
Raghavendra Prasad HavanjeDinakar ◽  
Pavan ◽  
Vishal Gadgihalli ◽  
Ramesh
Keyword(s):  
Coarse Aggregate ◽  
High Strength ◽  
Partial Replacement ◽  
Strength Development ◽  
Split Tensile Strength ◽  
Coarse Aggregates ◽  
Compaction Factor ◽  
Concrete Blocks ◽  
Main Components ◽  
Rubber Fabric

Wasted Truck Tyres can be used as an alternative for concrete coarse aggregate. The used tyres of truck are properly cutted and different ratios can be added to concrete blocks. The main components of modern tyres are synthetic rubber, natural rubber, fabric and wire, along with carbon black and chemical compounds.  In  the present paper, Truck Tyres are used  as conventional  coarse  aggregate  in  concrete  for  high  strength  (M50 Grade) concrete for every incremental of 25% replacement up to 100% is done. Slump cone test, Vee-Bee consistometer test and Compaction factor test are conducted to find freshness of concrete. The concrete is casted in cubes to harden it, tests such as compressive strength, cylinders for split tensile strength and prisms for flexural strength for 7days, 14days and 28days curing are done. The results obtained are compared with conventional coarse aggregate (0% replacement) concrete.

Experimental Study of Concrete By Partial Replacement of Coarse Aggregate By E-Waste

2018 ◽  
pp. 163-167
Author(s):  
A. C. Umare ◽  
Akshay Tak ◽  
Amrut Talekar ◽  
Akshay Waghmare ◽  
Ajinkya Todkar ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coarse Aggregate ◽  
Partial Replacement

scholarly journals Experimental Study on Concrete With Partial Replacement of Coarse Aggregate with Cashew Shells

2021 ◽  
Vol 1770 (1) ◽  
pp. 012036
Author(s):  
B Priyadharshini ◽  
R Nirmala ◽  
Eshanthini ◽  
C Manoj Kumaar
Keyword(s):  
Experimental Study ◽  
Coarse Aggregate ◽  
Partial Replacement

Palm Kernel Shell as Partial Coarse Aggregate Replacement in Asphalt Mixture: Optimum Binder Content and Volumetric Properties Investigation

2021 ◽  
Vol 1047 ◽  
pp. 179-185
Author(s):  
Siti Zubaidah Mohd Asri ◽  
Faridah Hanim Khairuddin ◽  
Choy Peng Ng ◽  
Noor Aina Misnon ◽  
Nur Izzi Md Yusoff ◽  
...  
Keyword(s):  
Coarse Aggregate ◽  
Asphalt Mixture ◽  
Control Sample ◽  
Palm Kernel ◽  
Binder Content ◽  
Partial Replacement ◽  
Volumetric Properties ◽  
Aggregate Gradation ◽  
Palm Kernel Shell ◽  
Mixture Samples

Pavement failures such as fatigue, rutting, cracking, bleeding, and stripping are typical pavement deterioration. Researchers have been experimenting with pavement modification to overcome these problems. This study determines the optimum binder content (OBC) for modifying an asphalt mixture with a partial replacement of coarse aggregate (5mm-14mm sieve size) with palm kernel shell (PKS). A 60/70 penetration grade bitumen was mixed with 10, 20 and 30% PKS at selected aggregate gradation following the Public Work Department of Malaysia (JKR/SPJ/2008-S4) specification. The preparation of 60 samples of unmodified and modified asphalt mixture employed the Marshall Method compacted with 75 blows. The OBC was determined based on five volumetric properties of asphalt mixture namely stability, flow, bulk density, void filled with asphalt, and void in total mix. The OBC and volumetric properties of the modified PKS asphalt mixture samples were compared with unmodified asphalt mixture samples in accordance to the specification. Results showed that the OBC sample with 30% aggregate replacement produced the highest OBC value of 5.53% relative to the control sample with 5.40% OBC. The trend for OBC with PKS replacement begins with 10% PKS with 5.30% OBC, 20% PKS with 5.32% OBC and 30% PKS. All volumetric properties of the PKS samples are within the specification limit. Thus, PKS has a promising potential as a coarse aggregate replacement in asphalt mixture.

scholarly journals Performance Evaluation of Concrete using Marble Mining Waste

2016 ◽  
Vol 11 (2) ◽  
pp. 53-66 ◽  
Author(s):  
Sudarshan Dattatraya Kore ◽  
A. K. Vyas
Keyword(s):  
Compressive Strength ◽  
Coarse Aggregate ◽  
Ultrasonic Pulse Velocity ◽  
Ultrasonic Pulse ◽  
Pulse Velocity ◽  
Mining Waste ◽  
Partial Replacement ◽  
Infrastructure Development ◽  
The Impact ◽  
Marble Waste

Abstract A huge amount waste (approximately 60%) is generated during mining and processing in marble industries. Such waste can be best utilized in infrastructure development works. Coarse aggregate 75% by weight was replaced by aggregate obtained from marble mining waste. The impact of marble waste as a partial replacement for conventional coarse aggregate on the properties of concrete mixes such as workability, compressive strength, permeability, abrasion, etc. was evaluated. The test results revealed that the compressive strength was comparable to that of control concrete. Other properties such as workability of concrete increased, water absorption reduced by 17%, and resistance to abrasion was marginally increased by 2% as compared to that of control concrete. Ultrasonic pulse velocity and FTIR results show improvement in quality of concrete with crushed marble waste. From the TGA analysis it was confirmed that, aggregate produced from marble waste shows better performance under elevated temperature than that of conventional aggregates.

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