Study on Field Thermal Curing of Ultra-High-Performance Concrete Employing Heat of Hydration
A pilot-scale field investigation was conducted through which: 1) a refined ultra-high-performance concrete (UHPC) mixture was prepared in a ready mixed concrete plant; 2) a large reinforced UHPC block was constructed through placement, consolidation, and finishing of UHPC; and 3) a commonly availab...
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| Veröffentlicht in: | ACI materials journal 2017-09, Vol.114 (5), p.733 |
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| creator | Sbia, L. A. Peyvandi, A. Lu, J. Abideen, S. Ul Weerasiri, R. R. Balachandra, A. M. Soroushian, P. |
| description | A pilot-scale field investigation was conducted through which: 1) a refined ultra-high-performance concrete (UHPC) mixture was prepared in a ready mixed concrete plant; 2) a large reinforced UHPC block was constructed through placement, consolidation, and finishing of UHPC; and 3) a commonly available concrete curing (insulating) blanket was applied for field thermal curing of the UHPC block using the exothermic heat of hydration of the cementitious binder in UHPC. Monitoring of the reinforced UHPC block temperature over time confirmed the development of a reasonably uniform temperature and a viable temperature time history, which suited thermal curing of UHPC without any heat input. In-place nondestructive inspection of the reinforced UHPC structure pointed at timely setting and strength development, leading to achievement of ultra-high-performance status. Specimens were cored from the large reinforced concrete block and subjected to laboratory testing. The experimental results indicated that the field thermal curing was more effective than the laboratory thermal curing considered in the project, and that the pilot-scale production of the UHPC mixture produced compressive strengths approaching 170 MPa (24.7 ksi). Keywords: heat of hydration; pilot-scale field production; thermal curing; ultra-high-performance concrete (UHPC). |
| doi_str_mv | 10.14359/51689677 |
| format | Article |
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A. ; Peyvandi, A. ; Lu, J. ; Abideen, S. Ul ; Weerasiri, R. R. ; Balachandra, A. M. ; Soroushian, P.</creator><creatorcontrib>Sbia, L. A. ; Peyvandi, A. ; Lu, J. ; Abideen, S. Ul ; Weerasiri, R. R. ; Balachandra, A. M. ; Soroushian, P. ; Harsini</creatorcontrib><description>A pilot-scale field investigation was conducted through which: 1) a refined ultra-high-performance concrete (UHPC) mixture was prepared in a ready mixed concrete plant; 2) a large reinforced UHPC block was constructed through placement, consolidation, and finishing of UHPC; and 3) a commonly available concrete curing (insulating) blanket was applied for field thermal curing of the UHPC block using the exothermic heat of hydration of the cementitious binder in UHPC. Monitoring of the reinforced UHPC block temperature over time confirmed the development of a reasonably uniform temperature and a viable temperature time history, which suited thermal curing of UHPC without any heat input. In-place nondestructive inspection of the reinforced UHPC structure pointed at timely setting and strength development, leading to achievement of ultra-high-performance status. Specimens were cored from the large reinforced concrete block and subjected to laboratory testing. The experimental results indicated that the field thermal curing was more effective than the laboratory thermal curing considered in the project, and that the pilot-scale production of the UHPC mixture produced compressive strengths approaching 170 MPa (24.7 ksi). Keywords: heat of hydration; pilot-scale field production; thermal curing; ultra-high-performance concrete (UHPC).</description><identifier>ISSN: 0889-325X</identifier><identifier>EISSN: 1944-737X</identifier><identifier>DOI: 10.14359/51689677</identifier><language>eng</language><publisher>Farmington Hills: American Concrete Institute</publisher><subject>Aggregates ; Cement ; Cement reinforcements ; Compressive strength ; Concrete blocks ; Concrete construction ; Concrete curing ; Concrete mixing ; Consolidation ; Curing ; Feasibility studies ; Field investigations ; Heat ; Heat of hydration ; High strength concrete ; Hydration ; Inspection ; Laboratories ; Measurement ; Mechanical properties ; Methods ; Nondestructive testing ; Observations ; Prestressed concrete ; R&D ; Reinforced concrete ; Research & development ; Stone ; Temperature ; Testing ; Ultra high performance concrete</subject><ispartof>ACI materials journal, 2017-09, Vol.114 (5), p.733</ispartof><rights>COPYRIGHT 2017 American Concrete Institute</rights><rights>Copyright American Concrete Institute Sep/Oct 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c296t-c188edb6c0e9245419e743defcc91566c7762155da4a4b4115a038acccc4060f3</citedby><cites>FETCH-LOGICAL-c296t-c188edb6c0e9245419e743defcc91566c7762155da4a4b4115a038acccc4060f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Sbia, L. 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Monitoring of the reinforced UHPC block temperature over time confirmed the development of a reasonably uniform temperature and a viable temperature time history, which suited thermal curing of UHPC without any heat input. In-place nondestructive inspection of the reinforced UHPC structure pointed at timely setting and strength development, leading to achievement of ultra-high-performance status. Specimens were cored from the large reinforced concrete block and subjected to laboratory testing. The experimental results indicated that the field thermal curing was more effective than the laboratory thermal curing considered in the project, and that the pilot-scale production of the UHPC mixture produced compressive strengths approaching 170 MPa (24.7 ksi). 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A.</au><au>Peyvandi, A.</au><au>Lu, J.</au><au>Abideen, S. Ul</au><au>Weerasiri, R. R.</au><au>Balachandra, A. M.</au><au>Soroushian, P.</au><aucorp>Harsini</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study on Field Thermal Curing of Ultra-High-Performance Concrete Employing Heat of Hydration</atitle><jtitle>ACI materials journal</jtitle><date>2017-09-01</date><risdate>2017</risdate><volume>114</volume><issue>5</issue><spage>733</spage><pages>733-</pages><issn>0889-325X</issn><eissn>1944-737X</eissn><abstract>A pilot-scale field investigation was conducted through which: 1) a refined ultra-high-performance concrete (UHPC) mixture was prepared in a ready mixed concrete plant; 2) a large reinforced UHPC block was constructed through placement, consolidation, and finishing of UHPC; and 3) a commonly available concrete curing (insulating) blanket was applied for field thermal curing of the UHPC block using the exothermic heat of hydration of the cementitious binder in UHPC. Monitoring of the reinforced UHPC block temperature over time confirmed the development of a reasonably uniform temperature and a viable temperature time history, which suited thermal curing of UHPC without any heat input. In-place nondestructive inspection of the reinforced UHPC structure pointed at timely setting and strength development, leading to achievement of ultra-high-performance status. Specimens were cored from the large reinforced concrete block and subjected to laboratory testing. The experimental results indicated that the field thermal curing was more effective than the laboratory thermal curing considered in the project, and that the pilot-scale production of the UHPC mixture produced compressive strengths approaching 170 MPa (24.7 ksi). Keywords: heat of hydration; pilot-scale field production; thermal curing; ultra-high-performance concrete (UHPC).</abstract><cop>Farmington Hills</cop><pub>American Concrete Institute</pub><doi>10.14359/51689677</doi></addata></record> |
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| identifier | ISSN: 0889-325X |
| ispartof | ACI materials journal, 2017-09, Vol.114 (5), p.733 |
| issn | 0889-325X 1944-737X |
| language | eng |
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| source | American Concrete Institute Online Journal Archives |
| subjects | Aggregates Cement Cement reinforcements Compressive strength Concrete blocks Concrete construction Concrete curing Concrete mixing Consolidation Curing Feasibility studies Field investigations Heat Heat of hydration High strength concrete Hydration Inspection Laboratories Measurement Mechanical properties Methods Nondestructive testing Observations Prestressed concrete R&D Reinforced concrete Research & development Stone Temperature Testing Ultra high performance concrete |
| title | Study on Field Thermal Curing of Ultra-High-Performance Concrete Employing Heat of Hydration |
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