scholarly journals The influence of the using waste tire rubber and natural ziolite as Asphalt and Cement replacements to compressive strength of Semi-Flexible Pavement

2019 ◽  
Vol 523 ◽  
pp. 012037
Author(s):  
Hamzani ◽  
Munirwansyah ◽  
M Hasan ◽  
S Sugiarto
Keyword(s):  
Compressive Strength ◽  
Flexible Pavement ◽  
Tire Rubber ◽  
Waste Tire ◽  
Waste Tire Rubber

scholarly journals Mathematical modelling of concrete compressive strength with waste tire rubber as fine aggregate

2021 ◽  
Vol 15 (3) ◽  
pp. 8344-8355
Author(s):  
B. W. Chong ◽  
R. Othman ◽  
P. J. Ramadhansyah ◽  
S. I. Doh ◽  
Xiaofeng Li
Keyword(s):  
Compressive Strength ◽  
Concrete Strength ◽  
Strength Loss ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Tire Rubber ◽  
Waste Tire ◽  
Rubber Particles ◽  
Waste Tire Rubber

With the increasing number of vehicle due to the boom of population and rapid modernisation, the management of waste tire is growing problem. Reusing grinded tire rubber in concrete is a green innovation which provide an outlet for reusing waste tire. While providing certain benefits to concrete, incorporation of tire rubber results in significant loss of concrete compressive strength which hinders the potential of rubberised concrete. This paper aims to develop mathematical models on the influence of tire rubber replacement on the compressive strength of concrete using design of experiment (DoE). 33 data sets are gathered from available literature on concrete with waste tire rubber as partial replacement of fine aggregate. Response surface methodology (RSM) model of rubberised concrete compressive strength shows great accuracy with coefficient of determination (R2) of 0.9923 and root-mean-square error (RMSE) of 2.368. Regression analysis on the strength index of rubberised concrete shows that rubberised concrete strength loss can be expressed in an exponential function of percentage of replacement. The strength loss is attributed to morphology of rubber particles and the weak bonds between rubber particles and cement paste. Hence, tire rubber replacement should be done sparingly with proper treatment and control to minimise concrete strength loss.

scholarly journals PRODUCTION OF LIGHTWEIGHT CONCRETE FROM WASTE TIRE RUBBER CRUMB

2016 ◽  
Vol 8 (3) ◽  
pp. 108-116 ◽  
Author(s):  
Joseph Olawale Akinyele ◽  
Ramhadhan Wanjala Salim ◽  
Williams Kehinde Kupolati
Keyword(s):  
Compressive Strength ◽  
Lightweight Concrete ◽  
Sieve Analysis ◽  
Fine Aggregate ◽  
Rubber Crumb ◽  
Tire Rubber ◽  
Waste Tire ◽  
Alternative Materials ◽  
Waste Tire Rubber ◽  
General Reduction

A lot of research has proposed the use of alternative materials in concrete, one of such material that has gained a lot of attention is the waste tire rubber. In this research, rubber crumb was used to partially replace fine aggregate in concrete at 0, 4, 8, 12, and 16% and represented as M0, M4, M8, M12, and M16, respectively. Sieve analysis was carried out on the rubber crumb and sand, while slump, compressive and tensile test were carried out on the concrete samples. The sieve analysis revealed that both the fine aggregate and rubber crumb are poorly graded. The slump test showed that the concrete losses it consistency as more rubber crumb was added. The 28 days compressive strength showed that there was a general reduction in strength. The work concluded that rubber crumb can be used to replace fine aggregate up to 16%, in lightweight concrete.

Permanent Deformation and Fatigue of Semi Flexible Pavement Incorporating Waste Tire Rubber and Natural Zeolite

2021 ◽  
Vol 892 ◽  
pp. 51-58
Author(s):  
Hamzani ◽  
Munirwansyah ◽  
Muttaqin Hasan ◽  
Sugiarto ◽  
Zulfhazli
Keyword(s):  
Cyclic Loading ◽  
Fatigue Failure ◽  
Natural Zeolite ◽  
Permanent Deformation ◽  
Flexible Pavement ◽  
Fatigue Tests ◽  
Tire Rubber ◽  
Waste Tire ◽  
Waste Tire Rubber ◽  
Pavement Structures

Due to repeated loads, the pavement structures will experience repeated stresses and strains resulting in permanent deformation even though the working loads are still smaller than the design load. The permanent deformation will lead to cracking and fatigue failure with the life of the pavement. This phenomenon can be reduced by increasing the stiffness, flexibility, durability, stability and water absorption of the pavement. Material modification including the utilization of waste tire rubber (WTR) and natural zeolite is one of the efforts to increase those parameters in semi flexible pavement (SFP). The aim of this study therefore, to assess the deformation and fatigue failure of SFP incorporating WTR and natural zeolite under cyclic loading. The WTR was used as an additive at the level of 3% of asphalt content while natural zeolite was used as cement replacement at the 0, 5, 15 and 25% replacement levels. Permanent deformation tests were conducted by applying wheel tracking loads with the pressure of 6.4 ± 0.15 kg/cm2 on the surface of the specimens with 1260 cycles per hour while fatigue tests were conducted on the simple supported beams with the span length of 30 cm by applying forth point loading at the frequency of 10 Hz. The test results showed that the best performance in sustaining cyclic loading was achieved at the zeolite content of 5%.

scholarly journals Statistical analysis of mechanical properties of mortars with fly ash and waste tire rubber

2019 ◽  
Vol 12 (4) ◽  
pp. 790-811
Author(s):  
A. PCZIECZEK ◽  
C. EFFTING ◽  
I. R. GOMES ◽  
A. SCHACKOW ◽  
E. HENNING
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Statistical Analysis ◽  
Fly Ash ◽  
Fine Aggregate ◽  
Tire Rubber ◽  
Response Variable ◽  
Waste Tire ◽  
Rubber Waste ◽  
Waste Tire Rubber

Abstract This article aims to perform statistical analysis on the inclusion effects of waste tire rubber and fly ash from thermoelectric plants as mortar components for coating buildings. Reference mortars and mortars containing 5% and 10% rubber with a maximum grain size of 0.71 mm and mortars containing fly ash particles with a diameter of 45 μm were produced. Mortars containing rubber replaced 5% and 10% of the fine aggregate mass by this material and fly ash was added in 10% and 20% proportions compared to the cement volume. A 3² factorial experiment was performed on the mechanical properties of the compressive strength of mortars, applying analysis of variance (ANOVA) and surface response. The rubber waste material contributed to the decrease in compressive strength of the mortar and that factor displayed the highest significance in the response variable.

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