Experimental investigation on compressive strength of concrete with sticky rice pulp at different ages (the experiment of concrete with sticky rice pulp)

2020 ◽  
Author(s):  
Huzhi Zhang ◽  
Xiaofeng Zhou ◽  
Gongxun Wang ◽  
Peigen He ◽  
Qunyu Yang ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Compressive Strength ◽  
Different Ages ◽  
Compressive Strength Of Concrete

Experimental Study on Sand and Cement Replacement by Termite Mound Soil

2019 ◽  
pp. 279-287
Author(s):  
Harish R ◽  
Ramesh S ◽  
Tharani A ◽  
Mageshkumar P
Keyword(s):  
Experimental Study ◽  
Experimental Investigation ◽  
Compressive Strength ◽  
Natural Environment ◽  
Fine Aggregate ◽  
Test Results ◽  
Termite Mound ◽  
Cement Concrete ◽  
Cement Ratio ◽  
Compressive Strength Of Concrete

This paper presents the results of an experimental investigation of the compressive strength of concrete cubes containing termite mound soil. The specimens were cast using M20 grade of concrete. Two mix ratios for replacement of sand and cement are of 1:1.7:2.7 and 1:1.5:2.5 (cement: sand: aggregate) with water- cement ratio of 0.45 and varying combination of termite mound soil in equal amount ranging from 30% and 40% replacing fine aggregate (sand) and cement from 10%,15%,20% were used. A total of 27 cubes, 18 cylinders and 6 beams were cast by replacing fine aggregate, specimens were cured in water for 7,14 and 28 days. The test results showed that the compressive strength of the concrete cubes increases with age and decreases with increasing percentage replacement of cement and increases with increasing the replacement of sand with termite mound soil cured in water. The study concluded that termite mound cement concrete is adequate to use for construction purposes in natural environment.

Experimental investigation on the compressive strength of PFGP-covered concretes exposed to high temperature

2019 ◽  
Vol 10 (4) ◽  
pp. 399-410
Author(s):  
Amir Hamzeh Keykha
Keyword(s):  
Experimental Investigation ◽  
Compressive Strength ◽  
High Temperature ◽  
Design Methodology ◽  
Polypropylene Fiber ◽  
Content Type ◽  
Gypsum Plaster ◽  
Compressive Strength Of Concrete

Purpose This study aims to investigate the effect of high temperature (600°C) on the compressive strength of concrete covered with a mixture of polypropylene fiber and gypsum plaster (PFGP). Design/methodology/approach To study the compressive strength of concrete specimens exposed to temperature, 16 cubic specimens (size: 150 mm × 150 mm × 150 mm) were made. After 28 days of processing and gaining the required strength of specimens, first, polypropylene fiber was mixed with gypsum plaster (CaSO4.2H2O) and then the concrete specimens were covered with this mixture. To cover the concrete specimens with the PFGP, the used PFGP thickness was 15 mm or 25 mm. The polypropylene rates mixed with the gypsum plaster were 1, 3 and 5 per cent. A total of 14 specimens, 12 of which were covered with PFGP, were exposed to high temperature in two target times of 90 and 180 min. Findings The results show that the PFGP as covering materials can improve the compressive strength lost because of the heating of the concrete specimens. The results also show that the presence of polypropylene fiber in gypsum plaster has the effect on the compressive strength lost because of the heating of the PFGP-covered concrete. The cover of PFGP having 3 per cent polypropylene fiber had the best effect on remained strength of the specimens. Originality/value The cover of PFGP having 3 per cent polypropylene fiber has the best effect on remained strength of the PFGP covered specimens exposed to temperature.

Relationship between Compressive, Splitting Tensile and Flexural Strength of Concrete Containing Granulated Waste Polyethylene Terephthalate (PET) Bottles as Fine Aggregate

2013 ◽  
Vol 795 ◽  
pp. 356-359 ◽  
Author(s):  
Mohd Irwan Juki ◽  
Mazni Awang ◽  
Mahamad Mohd Khairil Annas ◽  
Koh Heng Boon ◽  
Norzila Othman ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Polyethylene Terephthalate ◽  
Fine Aggregate ◽  
Pet Bottles ◽  
Fine Aggregates ◽  
Compressive Strength Of Concrete ◽  
Waste Polyethylene

This paper describes the experimental investigation of relationship between splitting tensile strength and flexural strength with the compressive strength of concrete containing waste PET as fine aggregates replacement. Waste PET was reprocesses and used as the artificial fine aggregate at the replacement volume of 25%, 50% and 75%, Cylindrical and prism specimens were tested to obtain the compressive, splitting tensile and flexural strength at the age of 28 days. Based on the investigation, a relationship for the prediction of splitting tensile and flexural strength was derived from the compressive strength of concrete containing waste PET as fine agglegate replacement.

scholarly journals Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 647
Author(s):  
Mahmood Karimaei ◽  
Farshad Dabbaghi ◽  
Mehdi Dehestani ◽  
Maria Rashidi
Keyword(s):  
Compressive Strength ◽  
Ultrasonic Pulse Velocity ◽  
Ultrasonic Pulse ◽  
Pulse Velocity ◽  
Volume Replacement ◽  
Coal Waste ◽  
Exponential Relationship ◽  
Different Ages ◽  
Compressive Strength Of Concrete ◽  
Non Destructive

In recent years, the overuse and exploitation of coal resources as fuel in industry has caused many environmental problems as well as changes in the ecosystem. One way to address this issue is to recycle these materials as an alternative to aggregates in concrete. Recently, non-destructive tests have also been considered by the researchers in this field. As there is limited work on the evaluation of the compressive strength of concrete containing coal waste using non-destructive tests, the current study aims to estimate the compressive strength of concrete containing untreated coal waste aggregates using the ultrasonic pulse velocity (UPV) technique as a non-destructive testing approach. For this purpose, various concrete parameters such as the compressive strength and UPV were investigated at different ages of concrete with different volume replacements of coarse and fine aggregates with coal waste. The test results indicate that 5% volume replacement of natural aggregates with untreated coal waste improves the average compressive strength and UPV of the concrete mixes by 6 and 1.2%, respectively. However, these parameters are significantly reduced by increasing the coal waste replacement level up to 25%. Furthermore, a general exponential relationship was established between the compressive strength and the UPV associated with the entire tested concrete specimens with different volume replacement levels of coal waste at different ages. The proposed relationship demonstrates a good correlation with the experimental results.

Static Modulus of Elasticity of Concrete

2015 ◽  
Vol 824 ◽  
pp. 151-154
Author(s):  
Pavel Reiterman
Keyword(s):  
Experimental Investigation ◽  
Compressive Strength ◽  
Modulus Of Elasticity ◽  
Hardened Concrete ◽  
Static Modulus ◽  
Concrete Mixtures ◽  
Compressive Strength Of Concrete ◽  
Static Modulus Of Elasticity

Present paper deals with the experimental investigation of static modulus of elasticity of hardened concrete and its relation to compressive strength of concrete. Based on the number of measurement was derived expression of dependence of modulus of elasticity on compressive strength of concrete which was determined using cubic specimens; modulus of elasticity was measured using prismatic specimens of dimensions 100x100x400 mm. Studied concrete mixtures present commonly used concrete of all established strength classes.

scholarly journals Modeling Wood and Fly Ash Behaviour as Partial Replacement for Cement on Compressive Strength of Self Compacting Concrete

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Eluozo S.N. ◽  
Dimkpa K
Keyword(s):  
Growth Rate ◽  
Experimental Investigation ◽  
Compressive Strength ◽  
Fly Ash ◽  
Modeling And Simulation ◽  
Model Validation ◽  
Concrete Strength ◽  
Partial Replacement ◽  
Self Compacting Concrete ◽  
Compressive Strength Of Concrete

Wood and fly ash were observed to have significant qualities that could improved the strength of self compacting concrete, the material were applied to increase the compressive strength of concrete strength, this material could be the demanding material for partial  replacement for cement, the study observed the behaviour of the material from experts that applied these material through experimental investigation, but the study monitored the behaviour of this material by applied modeling and simulation to determine other effect that could influence the behaviour of this materials in compressive strength, this was to determine the  significant effect on the addictive applied as partial replacement for cement, lots of experts has done works on fly ash through experiment concept, but the application of predictive concept has not be carried out, the  adoption of this concept has expressed other parameters that contributed to the efficiency of  wood and fly ash as partial replacement for cement on self compacting concrete. The study adopting modeling and simulation observed 10 and 20% by weight of cement as it is reflected on its performance in the simulation, from the simulation wood recorded 10% as it was observed from the growth rate of this self compacting concrete reflected from the trend, the simulation for model validation were compared with the works of the studies carried out [20]. And both values developed best fits correlation

EFFECT OF SILICA FUME ON THE PERFORMANCE OF POLYVINYL ALCOHOL CONCRETE

2016 ◽  
Vol 78 (5-10) ◽  
Author(s):  
Abu Bakar Ibrahim ◽  
Wan Norsariza Wan Husin ◽  
Izwan Johari
Keyword(s):  
Experimental Investigation ◽  
Compressive Strength ◽  
Polyvinyl Alcohol ◽  
Silica Fume ◽  
Preliminary Results ◽  
Cement Replacement ◽  
Concrete Mixtures ◽  
Super Plasticizer ◽  
Result Show ◽  
Compressive Strength Of Concrete

This paper reports the study with experimental investigation of Silica Fume (SF) concrete made with Polyvinyl Alcohol (PVA). Compressive strength of concrete is considered as a measure to determine the strength of concrete with different age and different cement composition. The major variables of this studied includes workability and compressive strength. Concrete mixtures are prepared under the same proportions, by different replacement of SF content and also used super plasticizer. SF was used to replace PCC at dosage levels of 5%, 10%, 15% and 20% by weight of the binder. The effect of cement substitution was evaluated and both experimental details and preliminary results are presented. The result show that the compressive strength of concrete containing SF was significantly improved and that cement replacement up to 15% SF shown the superior enhancement.

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