Experimental Study on Carbonation Resistance of Waste Rubber Concrete

2014 ◽  
Vol 1065-1069 ◽  
pp. 1766-1769
Author(s):  
Qun Yu ◽  
Jing Wang
Keyword(s):  
Particle Size ◽  
Rubber Particle ◽  
Experiment Study ◽  
Rubber Content ◽  
Concrete Carbonation ◽  
Waste Rubber ◽  
Carbonation Resistance ◽  
Resistance Performance ◽  
Rubber Concrete ◽  
Different Doses

The experiment study on the effect on the waste rubber concrete carbonization resistance performance from using three different doses of rubber which is 5%, 10%, 15% and three different rubber particle size which is 2-4 mm, 30-40 mesh, 60-80 mesh .The conclusion is that the concrete adding rubber particles had an adverse effect on early carbonation resistance of concrete, but late can make concrete carbonation resistance ability raise; Different rubber particle size and different influence on concrete carbonation resistance ability, 10% rubber content effect is the best, and the smaller the particle size of rubber particle concrete carbonation resistance ability of the better the results.

Experimental Study on Work Performance of Waste Rubber Concrete

2013 ◽  
Vol 275-277 ◽  
pp. 2051-2054
Author(s):  
Xiao Chu Wang ◽  
Chun Feng Yang ◽  
Min Yang
Keyword(s):  
Experimental Study ◽  
Particle Size ◽  
Work Performance ◽  
Concrete Mixture ◽  
Rubber Content ◽  
Rubber Powder ◽  
Waste Rubber ◽  
Rubber Concrete

Though design different of strength of rubber concrete, particle size of rubber, content of rubber, pretreatment methods of rubber, mixing methods of rubber, to study the work performance of waste rubber concrete. The results show that: When doped fine rubber powder to replace the sand is greater than 10% or the outer dosage greater than 20 Kg/m3, the work performance of the concrete mixture is reduced sharply.

scholarly journals Experimental Research on Chloride Erosion Resistance of Rubber Concrete

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Ruonan Zhu ◽  
Jianyong Pang ◽  
Tingya Wang ◽  
Xin Huang
Keyword(s):  
Particle Size ◽  
Compressive Strength ◽  
Corrosion Resistance ◽  
Wave Velocity ◽  
Early Stage ◽  
Rubber Particle ◽  
P Wave ◽  
Chloride Corrosion ◽  
P Wave Velocity ◽  
Rubber Concrete

Chloride corrosion test was carried out in 4% NaCl solution to study the chloride corrosion resistance of rubber concrete. Rubber concrete was prepared by using 20 mesh, 1∼3 mm, and 3∼6 mm rubber particles instead of sand by 5%, 10%, 15%, and 20% of the cementitious material mass. The P-wave velocity and compressive strength of rubber concrete were measured. The microstructure of rubber concrete corroded by chloride was analyzed by SEM. The micromorphology was compared with the macrofailure characteristics under uniaxial compression. The results show that the rubber concrete was still in the early stage of erosion. With the increase of immersion time at the age of 110 days, the P-wave velocity and compressive strength of concrete were generally on the rise. Furthermore, during the period of erosion, the mechanical properties of rubber concrete increased with the increase of rubber particle size and decreased with the increase of the content. Therefore, when the rubber particle size was 3∼6 mm and the content was 5%, the antierosion performance was the best. This study has a certain guiding significance for the chloride corrosion resistance of rubber concrete.

Study on Mechanical Properties and Impermeability of Rubber Concrete

2014 ◽  
Vol 629-630 ◽  
pp. 467-472
Author(s):  
Xiu Hua Zheng ◽  
Xu Zhang ◽  
Shi Zuo Zhan
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Rubber Particle ◽  
Particle Sizes ◽  
Rubber Content ◽  
Rubber Powder ◽  
Compressive Strength Of Concrete ◽  
Electric Flux ◽  
Powder Content ◽  
Rubber Concrete

The effects of the size and volumetric content of rubber powder on properties of concrete, including flexural strength, compressive strength and permeability, were studied in this paper. Two different particle sizes (20 meshand 60 mesh) of rubber powder were chosen to replace the sand with volume content of sand as5%, 10%, 15%, 20%, 25%, 30% respectively. The results showed that both flexural and compressive strength of concrete, especially compressive strength, decreased with the increase of rubber content. Moreover, the smaller the particle of rubber powder, the greaterer the strength of the concrete, which was not obvious as effect of rubber powder content on the strength of concrete. The impermeability of concrete increased with the increase of rubber powder content. The electric flux of concrete with 30% rubber powder reduced to about 900 C, which was only 1/5 of that with 5%. At the same content, smaller rubber particle has positiveeffects on the impermeability of concrete. Keywords: rubber concrete,rubber powder, compressive strength,flexural strength, permeability performance.

Experimental Study on Frost-Resistance Property of Waste Rubber Aggregate Concrete

2013 ◽  
Vol 275-277 ◽  
pp. 2055-2058 ◽  
Author(s):  
Qun Yu ◽  
Chun Feng Yang ◽  
Wen Chao Ye
Keyword(s):  
Frost Resistance ◽  
Rubber Particle ◽  
Particle Diameter ◽  
Test Results ◽  
Waste Rubber ◽  
Resistance Property ◽  
The Matrix ◽  
Substitution Ratio ◽  
Volume Substitution ◽  
Rubber Concrete

The experimental using quick frozen method to study the frost-resistance property of waste rubber concrete. Sand was replaced by waste rubber at equal volume substitution ratio divided into 5%, 10%, 15% and 20%; and rubber particle diameter is divided into 2-4mm, 60-80 mesh and 30-40 mesh. The test results show that: the frost-resistance property of waste rubber concrete could meet the specification of design requirements, the antifreeze level is higher than the matrix concrete, and the frost-resistance property improve with the reduce of rubber particle size, the best substitution ratio of rubber aggregate is about 10%.

Experimental Studies on the Carbonation Resistance Performance of Iron Tailings Concrete

2021 ◽  
Author(s):  
Ruolan Zhang ◽  
Jianheng Sun ◽  
Xinxin Ma ◽  
Yuhan Bai ◽  
Zhiliang Meng
Keyword(s):  
Experimental Studies ◽  
Carbonation Resistance ◽  
Resistance Performance

scholarly journals Effects of inclusion of granulated rubber tires on the mechanical behaviour of a compressive sand

2020 ◽  
Vol 57 (5) ◽  
pp. 763-769 ◽  
Author(s):  
W. Li ◽  
C.Y. Kwok ◽  
K. Senetakis
Keyword(s):  
Particle Size ◽  
Shear Strength ◽  
Mechanical Behaviour ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Rubber Content ◽  
Filling Materials ◽  
Rubber Particles ◽  
Decomposed Granite ◽  
Completely Decomposed Granite

Drained triaxial shearing tests were performed on a well-graded compressive sand (completely decomposed granite, CDG) and its mixtures with granulated rubber tires to investigate the effects of rubber size and content on their mechanical behaviour. Three sizes of rubber particles, GR1, GR2, and GR3, were used with size ratios to CDG (D50,rubber : D50,CDG) of 0.9, 3.5, and 7.2, respectively, and the rubber content ranged from 0% to 30%. The results show that for CDG–GR1 mixtures, the strength decreases with increasing rubber content, while for CDG–GR2 and CDG–GR3 mixtures, the strength decreases only at 10% rubber content and then increases markedly with increasing rubber content. The increase of strength is mainly because the inclusion of large rubber particles widens the particle size distributions of the mixtures, resulting in denser packings. The denser packings also lead to a decrease in compressibility. At larger size ratio and higher rubber content, the CDG–rubber mixtures show higher shear strength and lower compressibility than pure CDG, which indicates the CDG–rubber mixtures are very suitable to be used as filling materials.

Influence of Rubber Particle Size on Functional Properties of a Composite Material Based on Scrap Tires and a Polymer Binder

2020 ◽  
Vol 850 ◽  
pp. 107-111
Author(s):  
Laimonis Mālers ◽  
Agnija Cirvele
Keyword(s):  
Particle Size ◽  
Composite Material ◽  
Functional Properties ◽  
Material Properties ◽  
Rubber Particle ◽  
Polymer Binder ◽  
Scrap Tires ◽  
Elongation At Break ◽  
Rubber Particles ◽  
Purposeful Selection

Functional properties of composite material based on mechanically grinded scrap tires with different particle size of fractioned crumb and polyurethane type polymer binder were investigated to estimate influence of rubber particles size and content on composite material properties (Shore C hardness, compressive stress at 10 % deformation, tensile strength, elastic modulus and elongation at break, apparent density). Optimization possibilities of composite material consisting of rubber particles with different sizes or fractions were investigated. The obtained results show that variation of composition of the composite material by changing size of rubber granulate have definite influence on selected properties of the material. Purposeful selection and mutual combination of rubber particles size included in material can ensure desirable and predictable mechanical properties of composite material.

Microturbidimeter for Determination of Rubber Content of Latex

1931 ◽  
Vol 4 (4) ◽  
pp. 601-611
Author(s):  
S. D. Gehman ◽  
J. S. Ward
Keyword(s):  
Particle Size ◽  
Rubber Content ◽  
Mean Particle Size ◽  
Rubber Particles ◽  
Color Filters

Abstract It is desirable to devise a method for determining the dry rubber content of latex which will be both more rapid than the two trial coagulation methods and more precise than the hydrometric method. The turbidity of latex, depending upon the volumetric number and size of the suspended rubber particles, offers a satisfactory criterion for the determination of the rubber content of latex. A microturbidimeter, herein described, has been adapted to such determinations. It permits more rapid determinations of the rubber content than the two trial coagulation methods. Its precision is less than the lengthy trial coagulation method, involving coagulation, creping, and drying, but is probably greater than that of the shortened trial coagulation method involving only coagulation and creping. Its precision is approximately 1 per cent rubber in 35 per cent latex. The turbidity of latex obeys the turbidity-dilution law for rubber-content values less than 15 per cent. The use of color filters, transmitting the shorter wave lengths of light, minimizes the effects of a difference in the effective mean particle size of different kinds of latex.

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