Use of a CO2 curing step to improve the properties of concrete prepared with recycled aggregates
The paper presents the results of an experimental study on properties of concrete prepared with recycled mortar aggregate (RMA) that has been modified by a CO2 curing method. The experimental investigation was conducted in two parts. Firstly, the properties such as density, 10% fine value, and water...
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| Veröffentlicht in: | Cement & concrete composites 2014-01, Vol.45, p.22-28 |
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| creator | Kou, Shi-Cong Zhan, Bao-jian Poon, Chi-Sun |
| description | The paper presents the results of an experimental study on properties of concrete prepared with recycled mortar aggregate (RMA) that has been modified by a CO2 curing method. The experimental investigation was conducted in two parts. Firstly, the properties such as density, 10% fine value, and water absorption of CO2 improved RMA were determined. Secondly, the fresh, hardened and durability properties including slump, compressive and tensile splitting strength, drying shrinkage and chloride penetrability of the concretes prepared with RMA and CO2 cured aggregates (CI-RMA) were determined. It was found that the density, and 10% fine value of the CI-RMA was higher, and the water absorption of the CI-RMA was lower when compared to the untreated RMA. For the concrete, not only was there an improvement in the mechanical properties and resistance to chloride ion penetration for the concrete prepared with CI-RMA, but also the drying shrinkage was decreased. |
| doi_str_mv | 10.1016/j.cemconcomp.2013.09.008 |
| format | Article |
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The experimental investigation was conducted in two parts. Firstly, the properties such as density, 10% fine value, and water absorption of CO2 improved RMA were determined. Secondly, the fresh, hardened and durability properties including slump, compressive and tensile splitting strength, drying shrinkage and chloride penetrability of the concretes prepared with RMA and CO2 cured aggregates (CI-RMA) were determined. It was found that the density, and 10% fine value of the CI-RMA was higher, and the water absorption of the CI-RMA was lower when compared to the untreated RMA. For the concrete, not only was there an improvement in the mechanical properties and resistance to chloride ion penetration for the concrete prepared with CI-RMA, but also the drying shrinkage was decreased.</description><identifier>ISSN: 0958-9465</identifier><identifier>EISSN: 1873-393X</identifier><identifier>DOI: 10.1016/j.cemconcomp.2013.09.008</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Aggregates ; Carbon dioxide ; CO2 curing ; Concrete properties ; Concretes ; Curing ; Density ; Drying ; Recycled aggregate ; Shrinkage ; Water absorption</subject><ispartof>Cement & concrete composites, 2014-01, Vol.45, p.22-28</ispartof><rights>2013 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-ab5f27098bbbde0a1fd12fc3d2e93d204b2b334ad0f181ca335bc23408e4778c3</citedby><cites>FETCH-LOGICAL-c384t-ab5f27098bbbde0a1fd12fc3d2e93d204b2b334ad0f181ca335bc23408e4778c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0958946513001364$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>Kou, Shi-Cong</creatorcontrib><creatorcontrib>Zhan, Bao-jian</creatorcontrib><creatorcontrib>Poon, Chi-Sun</creatorcontrib><title>Use of a CO2 curing step to improve the properties of concrete prepared with recycled aggregates</title><title>Cement & concrete composites</title><description>The paper presents the results of an experimental study on properties of concrete prepared with recycled mortar aggregate (RMA) that has been modified by a CO2 curing method. 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For the concrete, not only was there an improvement in the mechanical properties and resistance to chloride ion penetration for the concrete prepared with CI-RMA, but also the drying shrinkage was decreased.</description><subject>Aggregates</subject><subject>Carbon dioxide</subject><subject>CO2 curing</subject><subject>Concrete properties</subject><subject>Concretes</subject><subject>Curing</subject><subject>Density</subject><subject>Drying</subject><subject>Recycled aggregate</subject><subject>Shrinkage</subject><subject>Water absorption</subject><issn>0958-9465</issn><issn>1873-393X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkMlOwzAQhi0EEmV5Bx-5JIyXJM4RKjapEheQuBnHmRRXTRNst6hvj6MicexlNv2zfYRQBjkDVt6ucou9HTZ26MecAxM51DmAOiEzpiqRiVp8nJIZ1IXKalkW5-QihBUAlLLiM_L5HpAOHTV0_sqp3Xq3WdIQcaRxoK4f_bBDGr-QpmhEHx2GST4t9BinMo7GY0t_XPyiHu3erlNmlkuPSxMxXJGzzqwDXv_5S_L--PA2f84Wr08v87tFZoWSMTNN0fEKatU0TYtgWNcy3lnRcqyTAdnwRghpWuiYYtYIUTSWCwkKZVUpKy7JzWFuOvR7iyHq3gWL67XZ4LANmpWSCwYlyOPSgksJXLEySdVBav0QgsdOj971xu81Az3x1yv9z19P_DXUOvFPrfeHVkxf7xx6HazDjcXWJUxRt4M7PuQXjQqUbQ</recordid><startdate>201401</startdate><enddate>201401</enddate><creator>Kou, Shi-Cong</creator><creator>Zhan, Bao-jian</creator><creator>Poon, Chi-Sun</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>H97</scope><scope>L.G</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>201401</creationdate><title>Use of a CO2 curing step to improve the properties of concrete prepared with recycled aggregates</title><author>Kou, Shi-Cong ; Zhan, Bao-jian ; Poon, Chi-Sun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-ab5f27098bbbde0a1fd12fc3d2e93d204b2b334ad0f181ca335bc23408e4778c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Aggregates</topic><topic>Carbon dioxide</topic><topic>CO2 curing</topic><topic>Concrete properties</topic><topic>Concretes</topic><topic>Curing</topic><topic>Density</topic><topic>Drying</topic><topic>Recycled aggregate</topic><topic>Shrinkage</topic><topic>Water absorption</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kou, Shi-Cong</creatorcontrib><creatorcontrib>Zhan, Bao-jian</creatorcontrib><creatorcontrib>Poon, Chi-Sun</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Cement & concrete composites</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kou, Shi-Cong</au><au>Zhan, Bao-jian</au><au>Poon, Chi-Sun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Use of a CO2 curing step to improve the properties of concrete prepared with recycled aggregates</atitle><jtitle>Cement & concrete composites</jtitle><date>2014-01</date><risdate>2014</risdate><volume>45</volume><spage>22</spage><epage>28</epage><pages>22-28</pages><issn>0958-9465</issn><eissn>1873-393X</eissn><abstract>The paper presents the results of an experimental study on properties of concrete prepared with recycled mortar aggregate (RMA) that has been modified by a CO2 curing method. 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| identifier | ISSN: 0958-9465 |
| ispartof | Cement & concrete composites, 2014-01, Vol.45, p.22-28 |
| issn | 0958-9465 1873-393X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1642310604 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Aggregates Carbon dioxide CO2 curing Concrete properties Concretes Curing Density Drying Recycled aggregate Shrinkage Water absorption |
| title | Use of a CO2 curing step to improve the properties of concrete prepared with recycled aggregates |
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