REDUCING CONCRETE PERMEABILITY BY USING NATURAL POZZOLANS AND REDUCED AGGREGATE-TO-PASTERATIO
نویسندگان
چکیده
منابع مشابه
Permeability of Concrete with Recycled Concrete Aggregate and Pozzolanic Materials under Stress
The research reported herein studied the permeability of concrete containing recycled-concrete aggregate (RA), superfine phosphorous slag (PHS), and ground granulated blast-furnace slag (GGBS) with and without stress. Test results showed that the chloride diffusion coefficient of RA concrete (RAC) without external loads decreased with time, and the permeability of RAC is much lower than that of...
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Recycled demolished concrete (DC) as recycled aggregate (RA) and recycled aggregate concrete (RAC) is generally suitable for most construction applications. Low-grade applications, including sub-base and roadwork, have been implemented in many countries; however, higher-grade activities are rarely considered. This paper examines relationships among DC characteristics, properties of their RA and...
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Roller Compacted Concrete (RCC), is a concrete with zero slump, which is used in damming and road pavement. Roller Compacted Concrete Pavement (RCCP) bear heavy traffic loads and severe weather conditions. This type of concrete is due to its economic and environmental capabilities, including reduced construction and maintenance costs, longer durability and longer lifetime, as well as environmen...
متن کاملCreep of Concrete with Substitution of Normal Aggregate by Recycled Concrete Aggregate
Synopsis: This study presents the experimental results on properties of concrete with replacement of natural aggregate by recycled concrete aggregate (RCA). Experimental data on the creep behavior of concrete mixtures (basic and drying creep) was obtained. The replacement factor of natural aggregate by RCA were 0%, 15%, 30%, 60% and 100%, and the test conditions were 50% RH and 20°C. The result...
متن کاملDetermination of Permeability of Concrete to Chloride Ions by Rapid Test Procedures
Methods which can be used to assess the chloride permeability of various types of concrete in a relatively short time are described. An electrical potential from 60-80 volt DC is applied either between a chloride solution ponded on a slab surface and the top of rebar mat, or between two faces at a core taken from a structure. The amount of chloride and sum of the electrical current which passes...
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ژورنال
عنوان ژورنال: Journal of Civil Engineering and Management
سال: 2015
ISSN: 1392-3730,1822-3605
DOI: 10.3846/13923730.2013.802719