Effect of Strength Properties on Concrete by Partial Replacement of Coarse Aggregate with Waste Cuddapah Stones

2017 ◽  
Vol 44 (5) ◽  
pp. 221-223
Author(s):  
Rajendra D ◽  
◽  
H Gokulram
Keyword(s):  
Coarse Aggregate ◽  
Strength Properties ◽  
Partial Replacement

scholarly journals THE EFFECT OF CERAMIC WASTE AS COARSE AGGREGATE ON STRENGTH PROPERTIES OF CONCRETE

2017 ◽  
Vol 36 (3) ◽  
pp. 691-696
Author(s):  
EE Ikponmwosa ◽  
SO Ehikhuenmen
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Coarse Aggregate ◽  
Control Sample ◽  
Strength Properties ◽  
Waste Material ◽  
Partial Replacement ◽  
Replacement Level ◽  
Ceramic Waste ◽  
Curing Age

This paper reports the findings on an experimental investigation of the effect of partial replacement of coarse aggregate with ceramic waste on strength properties of concrete. Compressive strength tests were conducted using 150x150x150mm cube specimens, while tensile strength was investigated using 150x300mm cylinder specimens. Results of tests show that workability, density, compressive and flexural strength of concrete decreased with increase in ceramic waste content. The compressive strength at 90 days curing age for the control sample was 24.67 N/mm2. Compressive strength values at 90 days curing age for  25%, 50% and 75% replacement levels were 21.78 N/mm2, 19.85 N/mm2and 17.85 N/mm2 respectively. The decrease in density and strength was due to ceramic waste being lighter and more porous than normal coarse aggregate. Tensile strength of concrete with ceramic waste decline gradually from 8.39 N/mm2 to 6.13 N/mm2 for the control and 75% replacement samples respectively. This could be attributed to the water absorption capacity and external porcelain nature of the waste material. A production cost savings of 10.7% for 1:2:4 concrete mix was noted at 75% replacement level. This study concludes that ceramic waste could be used for both structural and non-structural works and recommends that beyond 75% replacement level, ceramic waste material should not be used in concrete structures where strength is the major consideration. http://dx.doi.org/10.4314/njt.v36i3.5

scholarly journals Strength Properties of Rice Husk Ash Concrete with Shredded Pet Bottles as Coarse Aggregate Replacement

2019 ◽  
Vol 3 (Issue 1) ◽  
Author(s):  
M.T Akinleye ◽  
Q.A Uthman ◽  
A.A Abdulwahab
Keyword(s):  
Rice Husk ◽  
Coarse Aggregate ◽  
Rice Husk Ash ◽  
Strength Properties ◽  
Partial Replacement ◽  
Light Weight ◽  
Pet Bottles ◽  
Concrete Mix ◽  
Compressive And Flexural Strengths ◽  
Light Weight Aggregate

This study investigated the strength properties of Rice Husk Ash (RHA) concrete with shredded Polyethylene Terephthalate (PET) bottles as coarse aggregate partial replacement. Concrete mix, 1:2:4 was designed for all specimens with w/c of 0.5. Samples were prepared and examined at deferent replacement levels of cement with RHA (5, 10 and 15%) using shredded PET bottles (5, 10 and 15%) as coarse aggregate replacement. Concrete without RHA and shredded PET bottles served as control. A total number of 90 concrete cubes and 20 flexural beams were used to examine the strength properties of produced concrete specimens at 28 days. Results revealed that both compressive and flexural strengths of RHA-concrete decreased as the amount of shredded PET bottles increased. The compressive strengths obtained were 20.65, 17.44, 16.53 and 15.87 N/mm2 while the flexural strengths were 10.49, 6.63, 6.59 and 5.72 N/mm2 for 0, 5, 10 and 15% replacement levels respectively. This class of concrete could be used to produce both plain and reinforced concrete of light weight aggregate.

scholarly journals Utilisation of Seasand as Partial Replacement of Fine Aggregrate to Strengthen the Concrete

2020 ◽  
Vol 9 (5) ◽  
pp. 891-894
Keyword(s):  
Construction Industry ◽  
Coarse Aggregate ◽  
Construction Material ◽  
Strength Properties ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
River Sand ◽  
Sea Sand ◽  
Quarry Dust

Concrete is an important construction material widely used in the construction industry nowadays. It is blended material consisting of cement, fine aggregate, coarse aggregate and water. Generally the use of river sand as fine aggregate in our country is very widespread in industry. This paper mainly focuses on the study of strength properties of concrete in which river sand is replaced with sea sand as fine aggregate. In addition to it, Quarry Dust when added gains strength. Different mix proportions was replaced partially in 5%, 10%, 15% by Sea sand and Quarry dust. The strength of concrete for various mix proportions are carried out and tested for 14, 28, 56 days of curing. From the results obtained, with the replacement of river sand by sea sand along with well graded quarry dust upto to 15% increases the strength of concrete.

scholarly journals STRENGTH PROPERTIES OF CONCRETE USING PUMICE AGGREGATE AS PARTIAL REPLACEMENT OF COARSE AGGREGATE

2020 ◽  
Vol 04 (11) ◽  
pp. 519-525
Author(s):  
Mamman Adamu Idi ◽  
Agboola Shamsudeen Abdulazeez ◽  
Shuaibu Ahmed Usman ◽  
Tapgun Justin
Keyword(s):  
Coarse Aggregate ◽  
Strength Properties ◽  
Partial Replacement

scholarly journals Effect of Waste Tyre-Rubber Aggregate on the Strength Properties of Concrete

2018 ◽  
pp. 1-9
Author(s):  
Adetoye T. Oyebisi ◽  
Cordelia O. Osasona
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Coarse Aggregate ◽  
Strength Properties ◽  
Partial Replacement ◽  
Concrete Construction ◽  
Conventional Concrete ◽  
Waste Tyre ◽  
Rubber Aggregates

This research studied strength-characteristics of concrete using waste tyre-rubber as partial replacement for coarse aggregate in concrete construction and compares the results to those of conventional concrete. The specimens were produced with percentage replacements of the coarse aggregate by 5%, 10% and 15 % of rubber aggregate. A control mix with no replacement of the coarse aggregate was produced, to make a comparative analysis. The samples consisted of concrete cubes, cylinders and beams. Various tests (such as slump, compressive strength, splitting tensile strength and flexural strength tests), were conducted. Data-collection was mainly based on the results of the tests conducted on the specimens in the laboratory. The results show that there is a reduction in the compressive strength of the concrete, due to the inclusion of rubber aggregates. Compressive strength losses of 12.69%, 17.75% and 25.33% were noticed for 5%, 10%, 15% replacement of coarse aggregate, respectively; tensile strength losses of 13.01%, 20.12%, and 24.76% were observed, respectively, when 5%, 10%, 15% of the coarse aggregate was replaced, after 28 days of curing; -0.1%, -0.15% and 0.2% decrease in flexural strength was observed for 5%, 10% and 15% replacement, respectively, after curing for 28 days. Rubberised concrete was found to have some desirable characteristics (such as lower density, enhanced ductility, and a slight increase in flexural strength in the lower compressive strength concrete categories). The overall results show that it is possible to use recycled rubber tyres in concrete construction, as a partial replacement for coarse aggregates. Nevertheless, the percentage of replacement should be limited to 10% (which ensures the strength of the concrete is kept within the required range), and the application should be restricted to particular cases where the properties related to the replacement with the rubber aggregates clearly indicate an improvement on conventional concrete, and so are desirable.

Significance of Blast Furnace Slag as Coarse Aggregate in Self-Compacting Concrete

2013 ◽  
Vol 357-360 ◽  
pp. 829-833 ◽  
Author(s):  
R. Krishnasami ◽  
R. Malathy
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Coarse Aggregate ◽  
Fresh Concrete ◽  
Strength Properties ◽  
Ring Test ◽  
Partial Replacement ◽  
Self Compacting Concrete ◽  
Waste Products ◽  
Furnace Slag

Self-compacting concrete (SCC) is a flowing concrete mixture that is able to consolidate under its own weight. The highly workable nature of SCC makes it suitable for placing in complex structural elements and in sections with congested reinforcement. Utilization of industrial waste products in the construction industry draws serious attention of many researchers and investigators. In this study an experimental investigation has been carried out to study the significance of blast furnace slag as partial replacement for coarse aggregate in fly ash blended self-compacting concrete. The coarse aggregate was replaced by blast furnace slag at 10% to 100% and various tests were conducted to determine the optimum level of replacement of blast furnace slag in self-compacting concrete. The specimens were subjected to compressive strength, split tensile strength and flexural strength tests in addition to fresh concrete properties. Slump flow, J-ring test, L-box, U-box and V-funnel tests were carried out for evaluating fluidity, filling ability and segregation properties of the fresh concrete. Based on the overall observations it could be concluded that an increase in slag proportion increases the strength properties and among the various percentages of replacement 30% is found to be optimum for maximum strength properties.

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