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2019-11-6EFFECTS OF DEICERS ON CONCRETE DETERIORATION By David Darwin JoAnn Browning Lien Gong Sean R. Hughes A Report on Research Sponsored by the and Materials Laboratory University of Kansas Structural Engineering and Materials Laboratory SL Report 07-3 December 2007 THE UNIVERSITY OF KANSAS CENTER FOR RESEARCH INC
The results of a study conducted in the mid-1950s show that its not high concentrations of deicers that cause the heaviest scaling but relatively low amounts in the range of 2 to 4. In the study non-air-entrained concrete was tested after exposure to 25 freee-thaw cycles and air-entrained concrete was tested after exposure to 50 and 200
2013-10-30Deleterious Chemical Effects of Deicing Solutions on Concrete Pavements NOVEMBER 2010 Deterioration of the concrete specimens resembled that seen for the mortar specimens gures 7-8. In all cases the cubes exposed to different deicers. by deicing chemicals concrete mixtures containing 15 Class F y ash were next best and
2019-1-15Agencies should be aware of the deleterious effects magnesium chloride deicers can pose on the concrete strength even though the inhibited magnesium chloride deicers can pose less corrosion risk for steel in concrete relative to sodium-chloride-based deicers with or without inhibitor
2019-4-8JOINt DeterIOrAtION IN CONCrete PAvemeNtS 13 joints before sealing could also contribute to joint deterioration problem. The material properties of effects of deicers on concrete deterioration conclude that calcium chloride is the most aggressive deicer followed by magnesium chloride and sodium chloride Jain Janus Olek Jowiak
2018-12-10Salt solutions are used on pavement surfaces during wintry weather events to ensure safe driving conditions. In addition to sodium chloride NaCl which continues to be traditionally used as a deicer solutions of calcium chloride CaCl 2 and magnesium chloride MgCl 2 are being increasingly used to provide a more consistent ice and snow control and thus ensure safe driving
Chemical Damage to Concrete. Despite what is often advertised most deicers do chemical damage to concrete. All salts including calcium chloride sodium chloride ammonium nitrate and even magnesium chloride do chemical damage123
Concrete specimens were exposed to weekly cycles of wetting and drying in distilled water and in solutions of sodium chloride NaCl calcium chloride CaCl2 magnesium chloride MgCl2 and calcium magnesium acetate CMA with either a 6.04 molal ion concentration equivalent in ion concentration to a 15 solution of NaCl or a 1.06 molal ion concentration equivalent in ion concentration to
In a recently published paper University of Kansas researchers provided some interesting insights. In Effects of Deicers on Concrete Deterioration David Darwin JoAnn Browning Lein Gong and Sean Hughes compared how concrete samples reacted when exposed to
2018-11-14THE EFFECTS OF CALCIUM MAGNESIUM ACETATE DEICERS ON PORTLAND CEMENT MORTAR BARS A Thesis Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Master of Science Civil Engineering by Jeffrey M. Davis December 2006 Accepted by Prasad Rangaraju Committee Chair Serji Amirkhanian Brad Putman
2018-7-18Evaluation of the Effects of Deicers on Concrete Durability Author WisDOT Research Library Unit Subject 0092-17-03 2018. This research brief summaries the WHRP project Evaluation of the Effects of Deicers on Concrete Durability. Keywords
2016-3-16The main objective of this investigation was to evaluate the relative destructive effects of various deicers on the asphalt concrete pavement. First the effect of these types of deicers was assessed for the aggregate materials then its destructive effect on the asphalt concrete
2008-5-16The Deleterious Chemical Effects of Concentrated Deicing Solutions on Portland Cement Concrete Guidelines - 3 - Concrete Deterioration in the Presence of Deicing Chemicals There are two general forms of deterioration that can occur when concrete is exposed to high concentrations of chloride-based deicing chemicals
2013-5-30Concrete Deterioration Reinforced concrete is a very versatile construction material. Properly designed concrete structures are both strong and durable. However concrete structures are vulnerable to a number of factors that can cause deterioration. Deterioration can result in
DOI 10.1435920204 Corpus ID 15414244. Effects of Deicers on Concrete Deterioration inproceedingsDarwin2008EffectsOD titleEffects of Deicers on Concrete Deterioration authorDavid Charles Darwin and Joann Browning and Lien Gong and Sean R. Hughes year2008
2020-1-22UNDERSTANDING AND MITIGATING EFFECTS OF CHLORIDE DEICER EXPOSURE ON CONCRETE 5. Report Date -September 2014- 6. Performing Organiation Code 7. AuthorsXianming Shi Ning Xie Yudong Dang Anburaj Muthumani Jiang Huang Adam Hagel Shane Forsythe Eliabeth Selig Dustin Falk Eli McVey Amanda Kessel Callie Martins Yan Zhang Yida Fang 8
2018-7-183. Concrete technology Several laboratory studies have demonstrated the benefit of using supplementary cementitious materials to reduce the impact from deicinganti-icing chemicals. Fly ash reacts with available lime and alkali in concrete producing additional cementitious compounds C -S-H and hence reduces the pore interconnectivity of
Effects of Deicers on Concrete Deterioration. For periods of up to 95 weeks concrete specimens were exposed to weekly wetting and drying cycles in either distilled water or in solutions of sodium chloride NaCl calcium chloride CaCl sub 2 magnesium chloride MgCl sub 2 and calcium magnesium acetate CMA with either a 1.06 molal ion concentration equivalent in iron concentration to a 3
Concrete specimens were exposed to weekly cycles of wetting and drying in distilled water and in solutions of sodium chloride calcium chloride magnesium chloride and calcium magnesium acetate with either a 6.04 molal ion concentration equivalent in ion concentration to a 15 solution of NaCl or a 1.06 molal ion concentration equivalent in ion concentration to a 3 solution of NaCl for
2013-3-22properties of concrete will review the recently completed laboratory study on the effects of magnesium and calcium chlorides on the properties of concrete Part 2 J. Weiss will review the impact of fluid transport on pavement joint deterioration and will discuss the issues related to applicability of accelerated tests to field conditions
2017-5-8The detrimental effects of deicers on Portland cement concrete exist through three main pathways 1 physical deterioration such as salt scaling 2 chemical reactions between deicers and cement paste a cation-oriented process especially in the presence of
Rock salt deicers may accelerate highway concrete deterioration if the concrete has previously developed alkali-dolomite reactions between cement and dolomite coarse aggregate 1-6.Field observations substantiate salt-induced deterioration by finding that deterioration is more rapid for highways with heavy deicer applications compared to those with lesser applications 7
2015-7-27The Deleterious Chemical Effects of Concentrated Deicing Solutions on Portland Cement Concrete Larry Sutter Professor and Director Michigan Tech Transportation Institute Director University Transportation Center for Materials in Sustainable Transportation Infrastructure Michigan Tech and the U.P. Largest undergraduate Civil and Environmental
2014-9-19dolomite or from magnesium road deicers has a major role in highway concrete deterioration. Consequently magnesium deicers should be used with caution and long term testing of the effects of magnesium deicers on highway concrete should be implemented to determine their effects
The paper presents the results of an investigation of the effects of concentrated calciummagnesium acetate CMA solutions on concrete. Concrete specimens were manufactured following guidelines for structures exposed to freeethaw cycles and deicers watercement ratio wc0.45 and air-entraining admixture employing two cements obtained by blending a Portland clinker with 20 of
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