Effect of EVA on the fresh properties of cement paste
The improved workability effect of latex in dry mortars has not been fully clarified. The purpose of this research was to investigate the influence of the EVA copolymer on the cement hydration and on the rheological properties of cement pastes. The results pointed to a minor influence of EVA on ceme...
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| Veröffentlicht in: | Cement & concrete composites 2012-02, Vol.34 (2), p.255-260 |
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| creator | Betioli, A.M. Gleize, P.J.P. John, V.M. Pileggi, R.G. |
| description | The improved workability effect of latex in dry mortars has not been fully clarified. The purpose of this research was to investigate the influence of the EVA copolymer on the cement hydration and on the rheological properties of cement pastes. The results pointed to a minor influence of EVA on cement hydration and to a ball-bearing effect. In fact, the shear thinning behavior of reference paste at 15
min after mixing changed to shear thickening owing to the EVA addition. This behavior could be explained by the decrease in the interparticle separation distance as consequence of the solid content increase in case of shearing detachment of weakly adhered EVA particles from the cement particles surfaces. The expected EVA plasticizing effect was observed at 60
min. Such behavior points to the stabilization of EVA on the cement particles surfaces, thus resulting in a steric barrier effect. |
| doi_str_mv | 10.1016/j.cemconcomp.2011.10.004 |
| format | Article |
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min after mixing changed to shear thickening owing to the EVA addition. This behavior could be explained by the decrease in the interparticle separation distance as consequence of the solid content increase in case of shearing detachment of weakly adhered EVA particles from the cement particles surfaces. The expected EVA plasticizing effect was observed at 60
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min after mixing changed to shear thickening owing to the EVA addition. This behavior could be explained by the decrease in the interparticle separation distance as consequence of the solid content increase in case of shearing detachment of weakly adhered EVA particles from the cement particles surfaces. The expected EVA plasticizing effect was observed at 60
min. Such behavior points to the stabilization of EVA on the cement particles surfaces, thus resulting in a steric barrier effect.</description><subject>Calorimetry</subject><subject>Cement paste</subject><subject>Cements</subject><subject>Copolymers</subject><subject>Drying</subject><subject>Ethylene vinyl acetates</subject><subject>EVA</subject><subject>Hydration</subject><subject>Mortars</subject><subject>Particulate composites</subject><subject>Pastes</subject><subject>Redispersible polymer powder</subject><subject>Rheology</subject><subject>Rheometry</subject><issn>0958-9465</issn><issn>1873-393X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouK7-hxy9tE6aNh_HdVk_YMGLirdQ0wnbsm1q0hX896as4HFPA_M-887MSwhlkDNg4q7LLfbWD9b3Y14AY6mdA5RnZMGU5BnX_OOcLEBXKtOlqC7JVYwdAIhSFgtSbZxDO1Hv6OZ9Rf1Apx1SFzDu6Bj8iGFqMc5yWoPDRMc6TnhNLly9j3jzV5fk7WHzun7Kti-Pz-vVNrNlBVPGpVKgZSGFcgKtYp-i4o1DLXgtla2t5cIxWaDQvEDd1MilrJhsSquhQsWX5Pbom075OmCcTN9Gi_t9PaA_RMOEZFywUuvTKDBQ6RZgCVVH1AYfY0BnxtD2dfhJ0MwJ05n_UM0c6qykUNPo_XEU09ffLQYTbYuDxaYNKUbT-Pa0yS_qIIMP</recordid><startdate>20120201</startdate><enddate>20120201</enddate><creator>Betioli, A.M.</creator><creator>Gleize, P.J.P.</creator><creator>John, V.M.</creator><creator>Pileggi, R.G.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</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>20120201</creationdate><title>Effect of EVA on the fresh properties of cement paste</title><author>Betioli, A.M. ; Gleize, P.J.P. ; John, V.M. ; Pileggi, R.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c450t-37880972768f6ec81b653dfe963a78cacc36f172e6932e9dae377517d4c905e83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Calorimetry</topic><topic>Cement paste</topic><topic>Cements</topic><topic>Copolymers</topic><topic>Drying</topic><topic>Ethylene vinyl acetates</topic><topic>EVA</topic><topic>Hydration</topic><topic>Mortars</topic><topic>Particulate composites</topic><topic>Pastes</topic><topic>Redispersible polymer powder</topic><topic>Rheology</topic><topic>Rheometry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Betioli, A.M.</creatorcontrib><creatorcontrib>Gleize, P.J.P.</creatorcontrib><creatorcontrib>John, V.M.</creatorcontrib><creatorcontrib>Pileggi, R.G.</creatorcontrib><collection>CrossRef</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) 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>Betioli, A.M.</au><au>Gleize, P.J.P.</au><au>John, V.M.</au><au>Pileggi, R.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of EVA on the fresh properties of cement paste</atitle><jtitle>Cement & concrete composites</jtitle><date>2012-02-01</date><risdate>2012</risdate><volume>34</volume><issue>2</issue><spage>255</spage><epage>260</epage><pages>255-260</pages><issn>0958-9465</issn><eissn>1873-393X</eissn><abstract>The improved workability effect of latex in dry mortars has not been fully clarified. The purpose of this research was to investigate the influence of the EVA copolymer on the cement hydration and on the rheological properties of cement pastes. The results pointed to a minor influence of EVA on cement hydration and to a ball-bearing effect. In fact, the shear thinning behavior of reference paste at 15
min after mixing changed to shear thickening owing to the EVA addition. This behavior could be explained by the decrease in the interparticle separation distance as consequence of the solid content increase in case of shearing detachment of weakly adhered EVA particles from the cement particles surfaces. The expected EVA plasticizing effect was observed at 60
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| ispartof | Cement & concrete composites, 2012-02, Vol.34 (2), p.255-260 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Calorimetry Cement paste Cements Copolymers Drying Ethylene vinyl acetates EVA Hydration Mortars Particulate composites Pastes Redispersible polymer powder Rheology Rheometry |
| title | Effect of EVA on the fresh properties of cement paste |
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