Experimental Study of Elastic Modulus of Crumb Rubber Plastic Concrete

2010 ◽  
Vol 150-151 ◽  
pp. 1176-1183 ◽  
Author(s):  
Mei Zhou ◽  
Xiao Ming Yang ◽  
Kun Song
Keyword(s):  
Elastic Modulus ◽  
Influencing Factors ◽  
Crumb Rubber ◽  
Prediction Equation ◽  
Specimen Size ◽  
Analysis Method ◽  
Plastic Concrete ◽  
Binder Ratio ◽  
Crumb Rubber Concrete ◽  
Rubber Concrete

this paper got the compressive stress-strain fitting curve of crumb rubber plastic concrete, analyzed the influencing factors of elastic modulus of crumb rubber plastic concrete and found the influence law of specimen size and measuring distance to measured value of elastic modulus, through our experiments. The results of our experiments show that the method and operation of experiment strongly influence the measured value of elastic modulus of crumb rubber plastic concrete, but we can use the measures of step loading, screening and fitting curve to get the relatively exact measured value of elastic modulus of plastic concrete. And then, this paper analyzed a 16 sets of uniform experiment results with regression analysis method. As a result, we found the main influencing factors of elastic modulus of crumb rubber concrete are cement mixing amount, crumb rubber mixing amount and product of water-binder ratio and water reducer mixing amount, which the importance of them decreases progressively. Finally, this paper established the prediction equation of elastic modulus of crumb rubber concrete and found the connection of elastic modulus of crumb rubber concrete with specimen size and measuring distance.

scholarly journals Analysis and Prediction of Compressive Properties for Steel Fiber-and-Nanosilica-Reinforced Crumb Rubber Concrete

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Danying Gao ◽  
Tao Zhang ◽  
Yihong Wang ◽  
Yiming Kong ◽  
Dawei Li ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Elastic Modulus ◽  
Volume Content ◽  
Steel Fiber ◽  
Crumb Rubber ◽  
Steel Fibers ◽  
Peak Strain ◽  
Compressive Properties ◽  
Crumb Rubber Concrete ◽  
Rubber Concrete

The disposal of waste tire rubber has gained more attention from the viewpoint of green, environmental protection, and sustainability. Numerous attempts have been stated on the properties of crumb rubber concrete (CRC) and observed that there is a large reduction of compressive strength and elastic modulus of CRC with the increase of the rubber substitution rate. Based on the CRC with the crumb rubber volume content of 5%, the steel fibers and nanosilica were added to CRC to make steel fiber-and-nanosilica-reinforced crumb rubber concrete (SFNS-CRC) in this paper. The effects of the steel fiber volume content and nanosilica content on the compressive properties of SFNS-CRC were studied, including compressive strength, elastic modulus, peak strain, compression toughness, and failure pattern. The test results indicated that the modulus of elasticity and compressive strength of SFNS-CRC have the increasing tendency with the addition of steel fibers and nanosilica. Moreover, the peak strains have a significant increase with the increase of the steel fiber content and nanosilica replacement ratio. The compressive stress-strain curves of SFNS-CRC gradually plump with the increase of the steel fibers and nanosilica. Finally, the prediction formulas for the compressive strength, elastic modulus, and peak strain of SFNS-CRC were set up. A simple predicted model of the stress-strain curve for SFNS-CRC was proposed, which considers the effect of steel fibers and nanosilica.

Prediction on damage evolution of recycled crumb rubber concrete using quantitative cloud imagine correlation

2019 ◽  
Vol 209 ◽  
pp. 340-353 ◽  
Author(s):  
Qi Guo ◽  
Ruyi Zhang ◽  
Qirui Luo ◽  
Han Wu ◽  
Huping Sun ◽  
...  
Keyword(s):  
Damage Evolution ◽  
Crumb Rubber ◽  
Crumb Rubber Concrete ◽  
Rubber Concrete

Experimental Study on Ratio of Bending-Compressive Strength of the Crumb Rubber Concrete Modified by Latex

2014 ◽  
Vol 941-944 ◽  
pp. 761-764
Author(s):  
Wei Li ◽  
Zhen Huang ◽  
Xiao Chu Wang ◽  
Zi Sheng Zang
Keyword(s):  
Mechanical Property ◽  
Experimental Study ◽  
Compressive Strength ◽  
Surface Modification ◽  
Flexural Strength ◽  
Crumb Rubber ◽  
Interface Effect ◽  
Rubber Particles ◽  
Crumb Rubber Concrete ◽  
Rubber Concrete

The cementitiousness between rubber particles and cement-based material could be raised because of the surface modification of rubber,thus enhance the mechanical property of crumb rubber concrete and improve the interface effect of rubber particles.We had researched the change regulation about the ratio of bending-compressive strength of the crumb rubber concrete modified by latex,the concrete with various quantity of rubber,under the condition dosage of latex is 0.5% of cement quality.The result of experimental prove that,compressive strength, splitting tensile and flexural strength could be enhanced because of latex injecting,and the ratio of bending-compressive strength could be enhanced at the same time.

scholarly journals Bond behaviour of steel-reinforcing bars in Crumb Rubber Concrete (CRC)

2019 ◽  
Vol 18 (1) ◽  
pp. 2-17 ◽  
Author(s):  
Danda Li ◽  
Rebecca Gravina ◽  
Yan Zhuge ◽  
Julie E. Mills
Keyword(s):  
Crumb Rubber ◽  
Reinforcing Bars ◽  
Bond Behaviour ◽  
Crumb Rubber Concrete ◽  
Rubber Concrete

Experimental Study on Proportion of Tensile Strength and Compressive Strength of the Crumb Rubber Concrete Modified by Latex

2014 ◽  
Vol 919-921 ◽  
pp. 1916-1919
Author(s):  
Wei Li ◽  
Zhen Huang ◽  
Xiao Chu Wang ◽  
Zi Sheng Zang
Keyword(s):  
Mechanical Property ◽  
Experimental Study ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Surface Modification ◽  
Flexural Strength ◽  
Crumb Rubber ◽  
Rubber Particles ◽  
Crumb Rubber Concrete ◽  
Rubber Concrete

The cementitiousness between rubber particles and cement-based material could be raised because of the surface modification of rubber,thus enhance the mechanical property of crumb rubber concrete and improve the interface effect of rubber particles.We had researched the change regulation of the ratio between tensile strength and compressive strength of the Crumb Rubber Concrete Modified by latex,the concrete with various quantity of rubber,under the condition Dosage of latex is 0.5% of cement quality.The result of Experimental prove that,compressive strength, splitting tensile and flexural strength could be enhanced because of latex injecting,and the ratio between tensile strength and compressive strength could be enhanced at the same time.

Experimental Study on the Mechanical Properties of the Crumb Rubber Concrete

2013 ◽  
Vol 645 ◽  
pp. 172-175
Author(s):  
Wei Li ◽  
Xiao Chu Wang ◽  
Jun Wei Wang ◽  
Chuan Ji Wang
Keyword(s):  
Mechanical Properties ◽  
Deformation Property ◽  
Plain Concrete ◽  
Crumb Rubber ◽  
Ordinary Concrete ◽  
Testing Method ◽  
Fine Aggregates ◽  
Crumb Rubber Concrete ◽  
Tensile Splitting Strength ◽  
Rubber Concrete

The mechanical properties of concrete with composition of scrapped rubber tyre crumb replacing part of the fine aggregates were investigated. The testing method of the mechanical properties was executed according to . Many groups of crumb rubber concrete specimens are manufactured in different kinds of size and amount of rubber chips. The powder rubber and crumb rubber were mixed into C35 plain concrete, by the volume rations of 0%, 20%, 40 %, 60%, 80% and 100% of the fine aggregates, to investigate the influence of size and amount of rubber chips on the mechanical properties. The results of test indicate: the cubic compression strength, the tensile splitting strength and the strength of rupture decreased with the increase of rubber admixture. But there are some remarkable properties which is difficult to attain on ordinary concrete, such as better cracking resistance, better deformation property, minor density and so on.

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