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Study on preparation and strength of high-strength micro-expansive lightweight aggregate concrete
Orthogonal design was used to research the effect of water cement ratio and the content of expansive agent and fiber on the compressive strength, bending strength and splitting strength of high-strength micro-expansive lightweight aggregate concrete. The optimum mixing proportion of lightweight conc...
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Published in: | IOP conference series. Earth and environmental science 2021-07, Vol.826 (1), p.12034 |
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description | Orthogonal design was used to research the effect of water cement ratio and the content of expansive agent and fiber on the compressive strength, bending strength and splitting strength of high-strength micro-expansive lightweight aggregate concrete. The optimum mixing proportion of lightweight concrete considering different strength target was determined through the integrated balance method. Results indicated that, the splitting strength and bending strength was about 0.04 times and 0.08∼0.12 times as big as the compressive strength when the intensity grade of lightweight concrete was LC45 or LC50. The content of ZY expansive agent has a notable influence on compressive strength, and has certain influence on bending strength. The water cement ratio and polypropylene fiber content have no significant effect on different strength target. The optimum mixing proportion for high-strength micro-expansive lightweight aggregate concrete was that, the content of ZY expansive agent and polypropylene fiber were respectively 8% and 0.1%, and water cement ratio was 0.30. The strength grade of LC50 for the optimum mixing proportion has been achieved. |
doi_str_mv | 10.1088/1755-1315/826/1/012034 |
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The optimum mixing proportion of lightweight concrete considering different strength target was determined through the integrated balance method. Results indicated that, the splitting strength and bending strength was about 0.04 times and 0.08∼0.12 times as big as the compressive strength when the intensity grade of lightweight concrete was LC45 or LC50. The content of ZY expansive agent has a notable influence on compressive strength, and has certain influence on bending strength. The water cement ratio and polypropylene fiber content have no significant effect on different strength target. The optimum mixing proportion for high-strength micro-expansive lightweight aggregate concrete was that, the content of ZY expansive agent and polypropylene fiber were respectively 8% and 0.1%, and water cement ratio was 0.30. 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The optimum mixing proportion for high-strength micro-expansive lightweight aggregate concrete was that, the content of ZY expansive agent and polypropylene fiber were respectively 8% and 0.1%, and water cement ratio was 0.30. The strength grade of LC50 for the optimum mixing proportion has been achieved.</description><subject>Bend strength</subject><subject>Cement</subject><subject>Compressive strength</subject><subject>Concrete</subject><subject>Concrete aggregates</subject><subject>Expansive concrete</subject><subject>High strength</subject><subject>Lightweight concretes</subject><subject>Mechanical properties</subject><subject>Polypropylene</subject><subject>Splitting</subject><issn>1755-1307</issn><issn>1755-1315</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNqFkF1LwzAUhoMoOD_-ggS88aY2H03SXsqYHzDwYnodsva069jamGTq_r0plYkgeJMccp7zHvIgdEXJLSV5nlIlREI5FWnOZEpTQhnh2RGaHBrHh5qoU3Tm_ZoQqTJeTJBZhF21x32HrQNrnAltrE1XYR8cdE1Y4b7Gq7ZZJYeHbVu6PoFPazrfvgPexG74gOHEpmkcNCYALvuudBDgAp3UZuPh8vs-R6_3s5fpYzJ_fnia3s2TkskiS6DO1LLIshzqiuWECaOWDMrCEFUo4DKXFYGS1kCUXKpCCiKzSlBTcUlMDsDP0fWYa13_tgMf9LrfuS6u1EwIJRiXkkVKjlT8gvcOam1duzVurynRg049mNKDNR11aqpHnXHwZhxse_uTPJstfmHaVnVE2R_oP_lf-wuFFA</recordid><startdate>20210701</startdate><enddate>20210701</enddate><creator>Huiqin, Yao</creator><creator>dongmei, Liu</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>PATMY</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PYCSY</scope></search><sort><creationdate>20210701</creationdate><title>Study on preparation and strength of high-strength micro-expansive lightweight aggregate concrete</title><author>Huiqin, Yao ; dongmei, Liu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2694-ef47b9448efd28025a7b2ec9a0797e3686d0ec1fe076b7965064d51ad360a8ee3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Bend strength</topic><topic>Cement</topic><topic>Compressive strength</topic><topic>Concrete</topic><topic>Concrete aggregates</topic><topic>Expansive concrete</topic><topic>High strength</topic><topic>Lightweight concretes</topic><topic>Mechanical properties</topic><topic>Polypropylene</topic><topic>Splitting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huiqin, Yao</creatorcontrib><creatorcontrib>dongmei, Liu</creatorcontrib><collection>Open Access: IOP Publishing Free Content</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Environmental Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Environmental Science Collection</collection><jtitle>IOP conference series. Earth and environmental science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huiqin, Yao</au><au>dongmei, Liu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study on preparation and strength of high-strength micro-expansive lightweight aggregate concrete</atitle><jtitle>IOP conference series. Earth and environmental science</jtitle><addtitle>IOP Conf. Ser.: Earth Environ. Sci</addtitle><date>2021-07-01</date><risdate>2021</risdate><volume>826</volume><issue>1</issue><spage>12034</spage><pages>12034-</pages><issn>1755-1307</issn><eissn>1755-1315</eissn><abstract>Orthogonal design was used to research the effect of water cement ratio and the content of expansive agent and fiber on the compressive strength, bending strength and splitting strength of high-strength micro-expansive lightweight aggregate concrete. The optimum mixing proportion of lightweight concrete considering different strength target was determined through the integrated balance method. Results indicated that, the splitting strength and bending strength was about 0.04 times and 0.08∼0.12 times as big as the compressive strength when the intensity grade of lightweight concrete was LC45 or LC50. The content of ZY expansive agent has a notable influence on compressive strength, and has certain influence on bending strength. The water cement ratio and polypropylene fiber content have no significant effect on different strength target. The optimum mixing proportion for high-strength micro-expansive lightweight aggregate concrete was that, the content of ZY expansive agent and polypropylene fiber were respectively 8% and 0.1%, and water cement ratio was 0.30. The strength grade of LC50 for the optimum mixing proportion has been achieved.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1755-1315/826/1/012034</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Bend strength Cement Compressive strength Concrete Concrete aggregates Expansive concrete High strength Lightweight concretes Mechanical properties Polypropylene Splitting |
title | Study on preparation and strength of high-strength micro-expansive lightweight aggregate concrete |
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