Hydration evolution and compressive strength of calcium sulphoaluminate cement constantly cured over the temperature range of 0 to 80°C
Curing temperature plays a critical role in the properties and hydration of cement pastes. The influence of curing temperature (0–80°C) on the hydration evolution and compressive strength of calcium sulphoaluminate (CSA) cement has been studied in this paper. It was investigated by a combination of...
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| Veröffentlicht in: | Cement and concrete research 2017-10, Vol.100, p.203-213 |
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| creator | Wang, Peiming Li, Nan Xu, Linglin |
| description | Curing temperature plays a critical role in the properties and hydration of cement pastes. The influence of curing temperature (0–80°C) on the hydration evolution and compressive strength of calcium sulphoaluminate (CSA) cement has been studied in this paper. It was investigated by a combination of XRD, DSC-TGA and BSE-IA. The experimental results indicate that various curing temperatures do not change the type of hydration products but do affect their amounts. The maximum amounts of AFt and AFm appear at 20°C and 40°C respectively. Elevated temperatures promote the hydration. The 1 d-hydration degree increases from 20.3% at 0°C to 53.0% at 80°C. However, low temperature ( |
| doi_str_mv | 10.1016/j.cemconres.2017.05.025 |
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The influence of curing temperature (0–80°C) on the hydration evolution and compressive strength of calcium sulphoaluminate (CSA) cement has been studied in this paper. It was investigated by a combination of XRD, DSC-TGA and BSE-IA. The experimental results indicate that various curing temperatures do not change the type of hydration products but do affect their amounts. The maximum amounts of AFt and AFm appear at 20°C and 40°C respectively. Elevated temperatures promote the hydration. The 1 d-hydration degree increases from 20.3% at 0°C to 53.0% at 80°C. However, low temperature (<20°C) is in favor of a denser and more homogeneous matrix due to continuous substantial hydration. The early-age compressive strength increases at elevated temperatures. But at 40°C and 80°C, the compressive strength decreases since 7days. It has some connections with the hydration evolution. Before reaching a critical degree of hydration (about 53% in this study), the compressive strength is controlled by hydration degree. After that, it is dominated by AFt/AFm ratio and microstructure.</description><identifier>ISSN: 0008-8846</identifier><identifier>EISSN: 1873-3948</identifier><identifier>DOI: 10.1016/j.cemconres.2017.05.025</identifier><language>eng</language><publisher>Elmsford: Elsevier Ltd</publisher><subject>Calcium ; Calcium sulphoaluminate (CSA) cement ; Cement paste ; Cements ; Compressive strength ; Curing ; Curing temperature ; Evolution ; Hydration ; Hydration evolution ; Microstructure ; Reinforced steel ; Studies ; Sulfoaluminate cement</subject><ispartof>Cement and concrete research, 2017-10, Vol.100, p.203-213</ispartof><rights>2017 Elsevier Ltd</rights><rights>Copyright Elsevier BV Oct 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c258t-72680ed6e93988bf39c11468fd0ee9bc41f4cd7b6a22b728bf4ae0771465ed383</citedby><cites>FETCH-LOGICAL-c258t-72680ed6e93988bf39c11468fd0ee9bc41f4cd7b6a22b728bf4ae0771465ed383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.cemconres.2017.05.025$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids></links><search><creatorcontrib>Wang, Peiming</creatorcontrib><creatorcontrib>Li, Nan</creatorcontrib><creatorcontrib>Xu, Linglin</creatorcontrib><title>Hydration evolution and compressive strength of calcium sulphoaluminate cement constantly cured over the temperature range of 0 to 80°C</title><title>Cement and concrete research</title><description>Curing temperature plays a critical role in the properties and hydration of cement pastes. The influence of curing temperature (0–80°C) on the hydration evolution and compressive strength of calcium sulphoaluminate (CSA) cement has been studied in this paper. It was investigated by a combination of XRD, DSC-TGA and BSE-IA. The experimental results indicate that various curing temperatures do not change the type of hydration products but do affect their amounts. The maximum amounts of AFt and AFm appear at 20°C and 40°C respectively. Elevated temperatures promote the hydration. The 1 d-hydration degree increases from 20.3% at 0°C to 53.0% at 80°C. However, low temperature (<20°C) is in favor of a denser and more homogeneous matrix due to continuous substantial hydration. The early-age compressive strength increases at elevated temperatures. But at 40°C and 80°C, the compressive strength decreases since 7days. It has some connections with the hydration evolution. Before reaching a critical degree of hydration (about 53% in this study), the compressive strength is controlled by hydration degree. After that, it is dominated by AFt/AFm ratio and microstructure.</description><subject>Calcium</subject><subject>Calcium sulphoaluminate (CSA) cement</subject><subject>Cement paste</subject><subject>Cements</subject><subject>Compressive strength</subject><subject>Curing</subject><subject>Curing temperature</subject><subject>Evolution</subject><subject>Hydration</subject><subject>Hydration evolution</subject><subject>Microstructure</subject><subject>Reinforced steel</subject><subject>Studies</subject><subject>Sulfoaluminate cement</subject><issn>0008-8846</issn><issn>1873-3948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkEGO2yAYhVE1lZpJe4YidW0XsI3xMoo6k5EizWa6Rhh-J0Q2uIAj5QY9zpxhTjakqbrtCvj13vd-HkJfKSkpofz7qdQwae8CxJIR2pakKQlrPqAVFW1VVF0t7tCKECIKIWr-Cd3HeMpPziqxQr93FxNUst5hOPtx-XNTzmDtpzkjoz0DjimAO6Qj9gPWatR2mXBcxvno1bhM1qkEOC8BLmWbi0m5NF6wXgIY7M8QcDoCTjDNkKPyFAflDnClEZw8FuTtdfsZfRzUGOHL33ONfj78eNnuiv3z49N2sy80a0QqWsYFAcOhqzoh-qHqNKU1F4MhAF2vazrU2rQ9V4z1LcuKWgFp26xpwFSiWqNvN-4c_K8FYpInvwSXIyXtOMt4SnhWtTeVDj7GAIOcg51UuEhK5LV2eZL_apfX2iVpZK49Ozc3J-RPnC0EGbUFp8HYADpJ4-1_Ge80G5Os</recordid><startdate>201710</startdate><enddate>201710</enddate><creator>Wang, Peiming</creator><creator>Li, Nan</creator><creator>Xu, Linglin</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>201710</creationdate><title>Hydration evolution and compressive strength of calcium sulphoaluminate cement constantly cured over the temperature range of 0 to 80°C</title><author>Wang, Peiming ; Li, Nan ; Xu, Linglin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c258t-72680ed6e93988bf39c11468fd0ee9bc41f4cd7b6a22b728bf4ae0771465ed383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Calcium</topic><topic>Calcium sulphoaluminate (CSA) cement</topic><topic>Cement paste</topic><topic>Cements</topic><topic>Compressive strength</topic><topic>Curing</topic><topic>Curing temperature</topic><topic>Evolution</topic><topic>Hydration</topic><topic>Hydration evolution</topic><topic>Microstructure</topic><topic>Reinforced steel</topic><topic>Studies</topic><topic>Sulfoaluminate cement</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Peiming</creatorcontrib><creatorcontrib>Li, Nan</creatorcontrib><creatorcontrib>Xu, Linglin</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Cement and concrete research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Peiming</au><au>Li, Nan</au><au>Xu, Linglin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydration evolution and compressive strength of calcium sulphoaluminate cement constantly cured over the temperature range of 0 to 80°C</atitle><jtitle>Cement and concrete research</jtitle><date>2017-10</date><risdate>2017</risdate><volume>100</volume><spage>203</spage><epage>213</epage><pages>203-213</pages><issn>0008-8846</issn><eissn>1873-3948</eissn><abstract>Curing temperature plays a critical role in the properties and hydration of cement pastes. The influence of curing temperature (0–80°C) on the hydration evolution and compressive strength of calcium sulphoaluminate (CSA) cement has been studied in this paper. It was investigated by a combination of XRD, DSC-TGA and BSE-IA. The experimental results indicate that various curing temperatures do not change the type of hydration products but do affect their amounts. The maximum amounts of AFt and AFm appear at 20°C and 40°C respectively. Elevated temperatures promote the hydration. The 1 d-hydration degree increases from 20.3% at 0°C to 53.0% at 80°C. However, low temperature (<20°C) is in favor of a denser and more homogeneous matrix due to continuous substantial hydration. The early-age compressive strength increases at elevated temperatures. But at 40°C and 80°C, the compressive strength decreases since 7days. It has some connections with the hydration evolution. Before reaching a critical degree of hydration (about 53% in this study), the compressive strength is controlled by hydration degree. After that, it is dominated by AFt/AFm ratio and microstructure.</abstract><cop>Elmsford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.cemconres.2017.05.025</doi><tpages>11</tpages></addata></record> |
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| subjects | Calcium Calcium sulphoaluminate (CSA) cement Cement paste Cements Compressive strength Curing Curing temperature Evolution Hydration Hydration evolution Microstructure Reinforced steel Studies Sulfoaluminate cement |
| title | Hydration evolution and compressive strength of calcium sulphoaluminate cement constantly cured over the temperature range of 0 to 80°C |
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