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Jun 09 2010018332Get this from a library Concrete under severe conditions environment and loading proceedings of the 6th International Conference on concrete under severe conditions CONSEC10 M233rida Yucat225n Mexico 79 June 2010 Pedro CastroBorges et al
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The growth of rollercompacted concrete pavement use in cold climate regions often is impeded by concerns regarding its ability to resist frost attack Most published laboratory test results have indicated that the frost resistance and particularly the deicer saltscale resistance of4705
Feb 10 2019018332The main objective of this research was to develop highperformance Roller Compacted Concrete RCC with enhanced solid skeleton to secure greater workability mechanical properties and frost durability The study involved the development of a stepwise mixture design methodology to select aggregate proportioning and particlesize4529
Aghabaglou A M AndicCakir O and Ramyar K 2013 Freezethaw resistance and transport properties of highvolume fly ash roller compacted concrete designed by maximum density method Cement amp Concrete Composites 37 259266 Crossref Google Scholar4641
Roller Compacted Concrete Mix Proportioning Method I of making roller compacted concrete Uses the principles of soil compaction to produce a lean RCC where the optimum water content of the concrete is the one that produces the maximum dry density of the mixture the frost resistance of RCC is satisfactory Airentrainment of very lean RCC3662
3 Michel P and Jacques M Frost resistance of Rollercompacted concrete Concrete International 6 1996 pp2226 4 Handong Y Wei S and Gang L Study on the air bubble parameters and frost resistance of hydraulic concrete with high volume fly ashes Industrial construction 318 2001 pp46494799
The use of noslump rollercompacted concrete RCC in mass concrete construction was investigated RCC is concrete having no slump but containing the minimum amount of water necessary to achieve consolidation with a vibrating roller Tests were conducted to 1 optimize mixtures for application of noslump techniques 2 develop a consistency and quality control technique 3 determine3771
Fig 1 shows the relationship between durability factor and frost resistance factor In the figure the plotted data show the test results after 300 cycles freezingthawing test including dry concrete for roller compacted concrete and concrete products ordinary concrete with 8 cm slump and 55 and3526
Rollercompacted concrete RCC is a relatively stiffer hydraulic cement concrete mixture than regular concrete when fresh Similar to regular concrete RCC is a mixture of aggregate cementitious materials and water but it is placed using asphalt pavers and compacted by vibratory rollers and it hardens into concrete RCC contains a low amount of water exhibits no slump and requires3533
The resistance to frostthaw cycles was similar for fly ash and reference concrete without air entrainments agents The carbonation depth after 9 weeks in a3990
Development of a Conductometric Test for Frost Resistance of Concrete Abstract Report 1988 Laboratory Evaluation of Roller Compacted Concrete Abstract Report 1988 MLR8606 FreezeThaw Resistance of Cement With Excess Free Lime Abstract Report 19954239
Oct 18 2006018332Minimizing frost damage in RCC has been accomplished by proportioning mixtures with sufficiently low watercementitious material ratios so that the permeability of the paste is low The use of proper compaction techniques that lower the entrapped airvoid content increase strength and lower the permeability of the concrete will also improve3259
Roller Compacted Concrete for Roadway Paving increases providing increased frost resistance The proportioning by consistency evaluation has been adopted by the USACE and is based on the use of an apparatus known as the Vebe table3077
Application Researches on High Frostresistant Durability RCC in Severe Cold Region Interlayer and Size Effects on the Mechanical Properties of the Full Grade RCC Effect of Fly Ash on Dissolution Characteristic of Roller Compacted Concrete3070
The resistance of concrete to freezing and thawing in a moist condition is significantly improved by the use of intentionally entrained air The tiny entrained air voids act as empty chambers in the paste for the freezing and migrating water to enter thus relieving the pressure in3538
This study aims at the effects of different cementitious materials ie limestone powder silica fume and fly ash on the mechanical performance and frost resistance of roller compacted concrete3065
and frost resistant grades respectively The subscripts are on behalf of testing ages The mix designs of the three roller compacted concrete R1 R2 and R3 are given in Table 2 All the tests are prepared according to DLT 54332009 a b Fig 1 SEM images a raw fly ash b3197
RollerCompacted Concrete distance factor 18 frost resistance 19 water the condition data time series obtained can be utilized also for the evaluation of the actual road pavement3351
Roller Compacted Concrete Field Evaluation and Mixture Optimization August 2014 DOI workability level and compaction method on the airvoid system and frost resistance of RCC were4371
Evaluation of compressive strength Compressive strength is a vital property for conven fibers on frost resistance of roller compacted concrete in potassium acetate solution4759
Roller compacted concrete is used in two general areas of engineered construction dams and pavements In this document RCC will be discussed only in the context of its use in pavements RCC for mass concrete is discussed in ACI 2075R Roller compacted concrete for pavements can be described as follows A relatively stiff mixture of4356
In the fourth year of a research project of rollercompacted concrete pavements a test section was cast during the summer of 1990 using four different mixtures Two types of binder ASTM Type 1 a Class F fly ash and a blended silica fume cement and two binder contents 250 kgm3 were used to3402
Roller compacted concrete with high values of strength frost resistance and impermeability A D Osipov S V Sharkunov S N Semenenok amp A S Magiton Hydrotechnical Construction volume 26 pages 400 404 1992Cite this article4665
Andi231199akir and K Ramyar Freezethaw resistance and transport properties of highvolume fly ash roller compacted concrete designed by maximum density method Cement and Concrete Composites vol 37 no 1 pp 259266 20133327
The incorporation of AEA significantly improved the saltscaling resistance The average mass loss of airentrained RCC mixtures was lower than 118 ozyd2 400 gm2 after 50 freezethaw cycles which is considerably lower than the limit of 295 ozyd2 1000 gm2 17 Key Words 18 Distribution Statement Roller compacted concrete No3855
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