scholarly journals SURFACE SCALING RESISTANCE OF CONCRETE MODIFIED WITH BITUMINOUS ADDITION

2004 ◽  
Vol 10 (1) ◽  
pp. 25-30
Author(s):  
Marta Kosior-Kazberuk ◽  
Walery Jezierski
Keyword(s):  
Construction Industry ◽  
Portland Cement Concrete ◽  
Nacl Solution ◽  
Cement Concrete ◽  
Freezing And Thawing ◽  
Freeze Thaw ◽  
Cold Environments ◽  
Surface Scaling ◽  
Air Entrained Concrete ◽  
Scaling Resistance

Deterioration of concrete due to surface scaling is a very serious durability problem faced by the construction industry in cold environments. The experimental results of resistance to scaling due to cyclic freezing and thawing in the presence of 3 % NaCl solution (de‐icing agent) of not air‐entrained concrete with and without bituminous addition are presented and discussed in the paper. The results have been analysed using the analysis of variance and regression to verify the effect of addition content, number of freeze‐thaw cycles and the sort of cement on concrete ability to scaling. The statistical analysis showed that the bituminous addition significantly improves the scaling resistance of Portland cement concrete.

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.

Freeze-Thaw Durability of Portland Cement Concrete Subjected to Aircraft Deicer

2010 ◽  
Vol 152-153 ◽  
pp. 1856-1861 ◽  
Author(s):  
Hai Yan Ma ◽  
Hong Fa Yu ◽  
Wen Tao Cao ◽  
Kang Bai ◽  
Peng Zhou ◽  
...  
Keyword(s):  
Portland Cement ◽  
Tap Water ◽  
Portland Cement Concrete ◽  
Nacl Solution ◽  
Cement Concrete ◽  
Commercial Aircraft ◽  
Freeze Thaw ◽  
Negative Effect ◽  
Glycol Solution ◽  
Durability Of Concrete

Influence of glycol, which is the main composition of the most frequently used aircraft dicer, on the freeze-thaw durability of Portland cement concrete were investigated. Freeze-thaw durability of Portland cement concrete was tested by accelerated freeze-thaw test. Four kinds of solutions, namely tap water, 3.5% NaCl solution, glycol solutions and a LBR-A type commercial aircraft deicer were employed to be the freezing-thawing mediums. Results show that freeze-thaw durability of concrete exposed to glycol solutions is closely related to the solution concentrations. Failure of concretes exposed to 3.5% glycol solution is similar to that of those exposed 3.5% NaCl solution, which are attributed to serious surface scaling. While damage of concrete exposed to 12.5% and 25% glycol solutions are postponed, and the durability of concrete are increased. Compared with glycol solution, the commercial aircraft deicer demonstrated much more negative effect to concrete freeze-thaw durability, and the degree even exceeds 3.5% NaCl solution. Consequently, the commercial aircraft deicer is not a kind of environmental friendly deicer as usually considered.

scholarly journals Exploring Polymer-Modified Concrete and Cementitious Coating with High-Durability for Roadside Structures in Xinjiang, China

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Yinchuan Guo ◽  
Aiqin Shen ◽  
Xiaohui Sun
Keyword(s):  
Chloride Ions ◽  
Performance Tests ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Coating Materials ◽  
Freeze Thaw ◽  
Acrylic Latex ◽  
High Durability ◽  
Polymer Modified Concrete ◽  
Styrene Butadiene

The concrete roadside structures in Xinjiang, China, such as roadside barriers, bridge rails, and drainage holes, are severely damaged by the coupled effect of seasonal freeze-thaw cycles and deicer salts. To solve the corrosion problems of roadside structures, polymer-modified concrete was recommended for the future construction of roadside structures and polymer-modified cementitious coating was suggested for the protection of the current corroded ones. In this study, air-entraining agent and carboxylated styrene-butadiene latex were added for concrete modification and the corresponding performance tests were conducted. In addition, the performances of six types of readily available coating materials, including the acrylic latex modified cementitious coating designed in this study, were tested in freeze-thaw condition with the presence of chloride ions. The results show that 0.013% of the air-entraining agent and 10% of the carboxylated styrene-butadiene latex were appropriate dosage rates for the modification of Portland cement concrete, in terms of the improvement of the freeze-thaw resistance, compressive strength, and chloride impermeability. For the protection of the current corroded roadside structures, the acrylic-modified cementitious coating material demonstrated a good performance and the field monitoring confirmed that the coating is suitable for the protection of the roadside structures in Xinjiang.

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.

Deterioration of Concrete Freezing-Thawing in Different Salts Solution

2009 ◽  
Vol 405-406 ◽  
pp. 315-321 ◽  
Author(s):  
Yong Ge ◽  
Wen Cui Yang ◽  
Jie Yuan ◽  
Bao Sheng Zhang ◽  
Ai Ling Xiong
Keyword(s):  
Modulus Of Elasticity ◽  
Dynamic Modulus ◽  
Frost Resistance ◽  
Nacl Solution ◽  
Freezing And Thawing ◽  
Lower Strength ◽  
Internal Damage ◽  
Freeze Thaw ◽  
Concrete Deterioration ◽  
All Solutions

The frost resistance of concrete subjected to 3.5% NaCl solution, 5%, 7%, and 10% Na2SO4 solution and seawater were investigated by quick freeze-thaw test. There were two criteria, the relative dynamic modulus of elasticity (RDME) and the mass of scaling, for evaluating the frost resistance of concrete. The results showed that scaling was the main characteristic of deterioration when concrete subjected to freeze-thaw cycles in 3.5% NaCl solution and seawater, whereas RDME had little change. When freezing and thawing in Na2SO4 solution, concrete failed because of internal damage and surfaces of lower strength concrete specimens appeared local swelling and scaling before failure. Concentration of Na2SO4 solution had influence on frost resistance of concrete: deterioration of concrete in 5% or 7% Na2SO4 solution was severe but slower when the concentration reached to 10%. Entraining air into concrete was the best method to improve the durability of concrete subjected to freeze-thaw cycles in all solutions.

Sign in / Sign up

Export Citation Format

Share Document