Mechanical Properties of Concrete with Ground Waste Tire Rubber

1996 ◽  
Vol 1532 (1) ◽  
pp. 66-72 ◽  
Author(s):  
David Fedroff ◽  
Shuaib Ahmad ◽  
Banu Zeynep Savas
Keyword(s):  
Environmental Problem ◽  
The United States ◽  
Strain Response ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Cylinder Strength ◽  
Hardened Properties ◽  
Waste Tire Rubber ◽  
Stiffness Characteristics ◽  
Strength And Stiffness

Because used tires represent an increasingly serious environmental problem in the United States, this study was undertaken to examine the feasibility of using finely ground rubber in Portland-cement concrete. Various percentages of rubber, by weight of cement, were added to a control mix and the effects on the plastic and hardened properties of concrete were investigated. Workability of the mixes was affected, but it was controllable. For hardened concretes, the tests were conducted for compressive strength, split-cylinder strength, modulus of elasticity, and flexural strength. Stress-strain response was also investigated. The strength and stiffness characteristics were markedly reduced for rubcrete mixtures.

Freeze-Thaw Durability of Concrete with Ground Waste Tire Rubber

1997 ◽  
Vol 1574 (1) ◽  
pp. 80-88 ◽  
Author(s):  
Banu Zeynep Savas ◽  
Shuaib Ahmad ◽  
David Fedroff
Keyword(s):  
United States ◽  
Environmental Problem ◽  
Microscopic Analysis ◽  
The United States ◽  
Tire Rubber ◽  
Freeze Thaw ◽  
Air Content ◽  
Waste Tire ◽  
Waste Tire Rubber ◽  
Durability Of Concrete

Used tires represent an increasingly serious environmental problem in the United States. This study examines the freeze-thaw durability of concrete with ground waste tire rubber. Various percentages of rubber, by weight of cement, were added to a control concrete mixture. To evaluate the freeze-thaw durability of these “rubcrete” mixtures, freeze-thaw tests in accordance with ASTM C666 Procedure A and microscopic analyses in accordance with ASTM C457 Procedure B, were conducted. Results show that the rubcrete mixtures with 10 and 15 percent rubber by weight of cement are freeze-thaw durable. Results of the microscopic analysis indicate that properties such as air content and spacing factors are difficult to determine accurately because of the problems associated with polishing of the rubcrete specimens.

A Review on Fly Ash Based Geopolymer Rubberized Concrete

2016 ◽  
Vol 700 ◽  
pp. 183-196 ◽  
Author(s):  
Ahmad Azrem Azmi ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Che Mohd Ruzaidi Ghazali ◽  
Andrei Victor Sandu ◽  
Kamarudin Hussin ◽  
...  
Keyword(s):  
Portland Cement ◽  
Unit Weight ◽  
Hardened Concrete ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Freezing And Thawing ◽  
Tire Rubber ◽  
Air Content ◽  
Waste Tire ◽  
Waste Tire Rubber

Utilization of waste materials such as waste tire rubber in the building industry can help prevent environmental pollution whilst contributing to the design of more economical buildings. Preliminary studies show that workable rubberized portland cement concrete mixtures can be made provided that appropriate percentages of tire rubber are used in such mixtures. This article provides the overview of some of published paper using tire waste rubber in portland cement concrete. The researchers mostly investigated the properties of fresh and hardened concrete. The workability, density, air content, unit weight, compressive strength, modulus of elasticity, freezing and thawing resistance, abrasion resistance and thermal properties of the waste tire rubber in concrete were discussed.

scholarly journals Behaviour of Steel Fiber Reinforced Polymer Cement Concrete Slab Under Four Point Concentrated Loading

2019 ◽  
Vol 9 (2) ◽  
pp. 2740-2744
Keyword(s):  
Epoxy Polymer ◽  
Steel Fiber ◽  
Concrete Slab ◽  
Fiber Reinforced Polymer ◽  
Superior Performance ◽  
Cement Concrete ◽  
Reinforced Polymer ◽  
Concentrated Loading ◽  
Stiffness Characteristics ◽  
Strength And Stiffness

This article provides the behavior of polymer two way slab under four point concentrated loading. The slab with dimension of 600x600x75mm has been tested under simply supported condition. The slab was prepared with M20 grade concrete and this concrete mix was supplemented by 10% Bethemcharla stone powder and 10%Bisphenol-A epoxy polymer. In addition those additives steel fibers were added to the mix in the proportion of 0, 1 and 2% by volume. One more mix was cast without any additives and it considers as reference mix and used for comparison of other slabs. The slabs with additives in the mix showed superior performance in strength and stiffness characteristics. From the results it found that, the slab with 2% steel fiber showed 41.30% higher strength than the reference slab.

Instrumenting Ohio Test Pavement

1997 ◽  
Vol 1596 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Shad M. Sargand ◽  
Roger Green ◽  
Issam Khoury
Keyword(s):  
Asphalt Concrete ◽  
Structural Response ◽  
The United States ◽  
Department Of Transportation ◽  
Research Projects ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Delaware County ◽  
Selection Of ◽  
Highway Research

The Ohio Department of Transportation (ODOT) constructed a test pavement on US-23 in Delaware County, Ohio. Of the nine Specific Pavement Studies (SPS) formulated by the Strategic Highway Research Program (SHRP), four (SPS-1, SPS-2, SPS-8, and SPS-9) were included at the OH-SHRP DEL-23 site. Sensors were carefully selected and installed to monitor structural response and seasonal parameters on the basis of prior field experiences accumulated in the United States and Canada. Criteria used to select the sensors were cost, accuracy, sensitivity, longevity, and level of success in previous pavement research projects, especially projects in Ohio. Described here is the development of the Ohio test pavement in terms of objectives, overall instrumentation plan, and selection of sensors as well as typical instrumentation plans for asphalt concrete and portland cement concrete sections.

Seasonal Load Response Behavior of a Thin Portland Cement Concrete Pavement

2003 ◽  
Vol 1819 (1) ◽  
pp. 251-261 ◽  
Author(s):  
Tom Burnham
Keyword(s):  
Dynamic Load ◽  
Concrete Pavement ◽  
Dynamic Strain ◽  
Strain Response ◽  
Response Behavior ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Load Response ◽  
Temperature Moment ◽  
Cement Concrete Pavement

The mechanistic-empirical pavement design methods currently under development have demonstrated a need for seasonal material and load response behavior characterization. The seasonal dynamic load strain response of a thin [5-in. (127-mm)], low-cost, portland cement concrete pavement at the Minnesota Road Research Project was examined. Environmental and load-related factors to be considered in this type of study are described. For the truck speeds used, analysis found minimal effects on measured dynamic strain. Nonlinear temperature profiles in the slabs prompted the use of the temperature-moment concept in the analysis. For the approach side of the joint in the slabs, during periods with unfrozen base and subgrade layers, there is only a small increase in the dynamic strain response with decreasing temperature-moment. Average dynamic strain responses range from 50 to 80 microstrain, with little difference in magnitude between the 80,000-lb (355-kN) and 102,000-lb (453-kN) loadings. For the leave side of the joints in the slabs, there is a larger increase in dynamic strain response with decreasing temperature-moment. In addition, the 102,000-lb load response is nearly 60% larger than the 80,000-lb load response for large negative temperature-moments. Recommendations for improving dynamic load testing of pavements are given.

scholarly journals The influence of filler type on the corrosion stability of the sulfure concrete

2010 ◽  
Vol 64 (2) ◽  
pp. 129-137 ◽  
Author(s):  
Velislav Vidojkovic ◽  
Tamara Boljanac ◽  
Andjelka Brankovic ◽  
Milica Vlahovic ◽  
Sanja Martinovic ◽  
...  
Keyword(s):  
Portland Cement ◽  
Immersion Time ◽  
Environmental Problem ◽  
Refining Process ◽  
Oil Refining ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Corrosion Stability ◽  
Concrete Production ◽  
Time Changes

Sulfur concrete was prepared by using the initial components: sand as an aggregate, modified sulfur binder, and talc, alumina, microsilica, and fly ash as fillers. Portland cement concrete was made of the same aggregate and fillers and portland cement. The durability of prepared concrete samples was tested in following aggressive solutions: 10% HCl, 20% H2SO4, and 3% NaCl as a function of time. Changes in mass and strength of the sulfur concrete were monitored periodicallly during the immersion time of 360 days in above solutions. These changes were used as a measure of deterioration level. It should be highlighted that the samples with the ash and especially talc exhibit higher durability in the solutions of HCl and H2SO4 than the samples with alumina and microsilica. In the solutions of NaCl all samples shown excellent durability while the samples with talc were the best. Portland cement concrete samples after two months lost 20 % of mass and shown degradation of mechanical properties. By usage of sulfur for sulfur concrete production, huge environmental problem regarding storage of waste sulfur from oil refining process is solved. On the other hand, sulfur concrete with its low price has an excellent quality for the application in aggressive environments unlike more expensive PCC.

Using a Road Surface Analyzer to Explain Noise Characteristics of Portland Cement Concrete Pavement Surface Texture

2000 ◽  
Vol 1716 (1) ◽  
pp. 144-153 ◽  
Author(s):  
David A. Kuemmel ◽  
Ronald C. Sonntag ◽  
John R. Jaeckel ◽  
James A. Crovetti ◽  
Yosef Z. Becker ◽  
...  
Keyword(s):  
Portland Cement ◽  
Surface Texture ◽  
The United States ◽  
Road Surface ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Private Industry ◽  
Noise Characteristics ◽  
Wide Range ◽  
Sand Patch

Uniformly spaced, transverse-tined portland cement concrete (PCC) pavements have been in extensive use in the United States since the early 1970s. Recent research by the Wisconsin Department of Transportation (WisDOT) and FHWA has led to an interim guideline for randomization of the tining pattern, with spacings varying from 10 to 40 mm and 50 percent of the spacings at or below 25 mm. At least five states have experimented with this random pattern. A six-state research study, funded by WisDOT and FHWA, was completed in 2000 by Marquette University and the HNTB Corporation. This study investigated 57 different PCC pavement textures, including a wide range of transverse and longitudinal tining patterns. One goal was to explain noise differences within and between various textures as well as to document noise and texture differences. The laser-based road surface analyzer (ROSAN), developed cooperatively by the Turner Fairbanks Research Center and private industry, was utilized for surface textural measurements. Before the advent of laser-based texture measurement devices, large studies of this type would have relied on manual volumetric (sand patch) measurements to quantify surface textural differences, making virtually impossible the determination of reasons for differences in noise characteristics of various textures. The use of ROSAN is described, tools developed to analyze textural variations and noise characteristics of tined pavement surfaces are presented, and correlations between ROSAN outputs and other variables, including noise level and sand patch measurements, are provided. Examples of simple and more subtle causes of noise discrepancies on random transverse tined PCC pavements are presented by use of ROSAN outputs. A great variation in surface texture, including tine spacing, width, and depth, was found among different PCC pavement sections constructed to identical tining specifications. Significant variations were also noted within any given test section in all states. A low correlation between ROSAN estimated texture depth and noise was observed. A more significant correlation between depth and width of tining was observed with use of ROSAN outputs. Recommendations include the need for quality control of tine depth, the need for a wet pavement accident study to determine tining depth requirements, and the development of an improved measurement device for measuring longitudinally tined PCC pavements.

Freeze–Thaw Durability and Salt Scaling Resistance Assessment of Portland Cement Concrete Composite Pavement

2012 ◽  
Vol 2290 (1) ◽  
pp. 76-83
Author(s):  
Mary Vancura ◽  
Derek Tompkins ◽  
Lev Khazanovich
Keyword(s):  
United States ◽  
Portland Cement ◽  
The United States ◽  
Resistance Testing ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Capillary Suction ◽  
Freeze Thaw ◽  
Salt Scaling ◽  
Scaling Resistance

The SHRP 2 R21 project on composite pavement investigated the durability of various mixtures of portland cement concrete (PCC) used in the construction of a two-layer composite PCC pavement. Project consultants in Europe, where composite PCC over PCC pavement was more common than in the United States, advised the R21 research team to consider using the CIF (capillary suction, internal damage, and freeze–thaw) standard of the International Union of Laboratories and Experts in Construction Materials, Systems, and Structures (RILEM), Paris, rather than the familiar ASTM standards. As a result, the R21 project adopted the RILEM CIF standard to evaluate the freeze–thaw durability and salt scaling resistance of concretes. The research also explored a modified RILEM CIF test (using pure water instead of a sodium chloride solution in scaling tests) alongside the standard RILEM CIF tests. The paper describes this experience to expose other institutions and agencies in the United States to the RILEM standards for the freeze–thaw durability and salt scaling resistance testing of concretes.

Design of a Randomized Tining Rake for Portland Cement Concrete Pavements Using Spectral Analysis

2000 ◽  
Vol 1702 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Ziad S. Saad ◽  
John R. Jaeckel ◽  
Yosef Z. Becker ◽  
David A. Kuemmel ◽  
Alex Satanovsky ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Portland Cement ◽  
Acoustic Noise ◽  
The United States ◽  
Design Stage ◽  
Random Pattern ◽  
Concrete Pavements ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Wisconsin Department

Uniformly spaced, transverse-tined portland cement concrete (PCC) pavements have been in extensive use in the United States since the early 1970s. However, driving on tined pavements generates an uncomfortable acoustic “whine”that has a discrete frequency. Recent research by the Wisconsin Department of Transportation (WisDOT) and FHWA led to an interim guideline for randomization of the tining pattern. The guideline called for tine spacing varying from 10 to 40 mm, with 50 percent of the spacing below 25 mm. At least five states have experimented with this random pattern, with limited success in eliminating the whine. A study was completed recently as part of a WisDOT contract with Marquette University and the HNTB Corporation, and funded by FHWA, to analyze all of the pavements. The tonal properties of acoustical noise were related to the serial arrangement of the tining, showing that the frequencies can be predicted from the power spectrum of the series of tines. A method of designing the series of tines that minimizes and possibly eliminates the presence of these whines is proposed and explained. By predicting the tonal properties of acoustical noise at the rake-design stage, the construction effort in building and researching noise and texture characteristics is substantially reduced. A random rake, designed using the proposed methodology, has been used in tining a road section, and preliminary spectral analysis of the acoustic noise revealed no tining-related discrete tones.

Minimum cost design of sulphur concrete pavements

1983 ◽  
Vol 10 (4) ◽  
pp. 649-653 ◽  
Author(s):  
R. E. Loov ◽  
J. E. Gillott ◽  
I. J. Jordaan ◽  
N. G. Shrive
Keyword(s):  
Portland Cement ◽  
Minimum Cost ◽  
Concrete Pavements ◽  
Asphaltic Concrete ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Soil Cement ◽  
Material Stiffness ◽  
Minimum Cost Design ◽  
Stiffness Characteristics

Two types of paving materials have traditionally been used for surfaces that must be better than can be provided by materials such as gravel or soil-cement. Portland-cement concrete has been designed based on procedures that recognize the rigid nature of this material. Asphaltic concrete has, on the other hand, been designed based on a recognition of the flexible nature of this material.We have found that, with minor differences in the amounts of suitable additives, sulphur concrete can be tailored to have different stiffness characteristics ranging between asphaltic concrete and Portland-cement concrete. With this material we have an opportunity therefore to choose the material stiffness that will result in the minimum pavement thickness for a given situation. The optimum material stiffness has been determined, based on different sub-base stiffnesses for standard wheel loads.The results of this investigation should be of interest to all engineers faced with the responsibility for designing pavements. Keywords: pavement, sulphur concrete, minimum cost design, highways.

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