Rubber-mortar composites: Effect of composition on properties
The Weibull modulus of mortar specimens containing 35% (w/w of cement content) of NaOH-treated rubber particles was calculated showing a value of 9.1 for the control and 9.4 for the specimens with rubber, indicating that the incorporation of a high amount of rubber does not change the casting reprod...
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Veröffentlicht in: | Journal of materials science 2004-05, Vol.39 (10), p.3319-3327 |
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creator | Segre, N Joekes, I Galves, A. D Rodrigues, J. A |
description | The Weibull modulus of mortar specimens containing 35% (w/w of cement content) of NaOH-treated rubber particles was calculated showing a value of 9.1 for the control and 9.4 for the specimens with rubber, indicating that the incorporation of a high amount of rubber does not change the casting reproducibility. Since the flexural strength of these rubber-containing specimens was reduced by 43%, new composites were prepared using 10% of rubber as addition or aggregate. Water sorption by immersion, resistance to acid attack, flexural strength and freeze-thaw experiments were performed. Transport properties were improved for the addition-rubber-containing composites; the best results were obtained with the aggregate-rubber-containing composites. A reduction of 15% in flexural strength was observed for addition-rubber-containing composites and 25% for the aggregate-rubber-containing composites, roughly as expected if the flexural strength varies linearly with the rubber content. Furthermore, after 60 freezing and thawing cycles, a reduction of 75% in flexural strength was observed for the control specimens and only 20% for the addition-rubber-containing specimens. |
doi_str_mv | 10.1023/B:JMSC.0000026932.06653.de |
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D ; Rodrigues, J. A</creator><creatorcontrib>Segre, N ; Joekes, I ; Galves, A. D ; Rodrigues, J. A</creatorcontrib><description>The Weibull modulus of mortar specimens containing 35% (w/w of cement content) of NaOH-treated rubber particles was calculated showing a value of 9.1 for the control and 9.4 for the specimens with rubber, indicating that the incorporation of a high amount of rubber does not change the casting reproducibility. Since the flexural strength of these rubber-containing specimens was reduced by 43%, new composites were prepared using 10% of rubber as addition or aggregate. Water sorption by immersion, resistance to acid attack, flexural strength and freeze-thaw experiments were performed. Transport properties were improved for the addition-rubber-containing composites; the best results were obtained with the aggregate-rubber-containing composites. A reduction of 15% in flexural strength was observed for addition-rubber-containing composites and 25% for the aggregate-rubber-containing composites, roughly as expected if the flexural strength varies linearly with the rubber content. Furthermore, after 60 freezing and thawing cycles, a reduction of 75% in flexural strength was observed for the control specimens and only 20% for the addition-rubber-containing specimens.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1023/B:JMSC.0000026932.06653.de</identifier><identifier>CODEN: JMTSAS</identifier><language>eng</language><publisher>Heidelberg: Kluwer Academic Publishers</publisher><subject>Acid resistance ; acid tolerance ; Applied sciences ; Buildings. Public works ; cement ; Composite materials ; Composition effects ; Concretes. Mortars. 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A</creatorcontrib><title>Rubber-mortar composites: Effect of composition on properties</title><title>Journal of materials science</title><description>The Weibull modulus of mortar specimens containing 35% (w/w of cement content) of NaOH-treated rubber particles was calculated showing a value of 9.1 for the control and 9.4 for the specimens with rubber, indicating that the incorporation of a high amount of rubber does not change the casting reproducibility. Since the flexural strength of these rubber-containing specimens was reduced by 43%, new composites were prepared using 10% of rubber as addition or aggregate. Water sorption by immersion, resistance to acid attack, flexural strength and freeze-thaw experiments were performed. Transport properties were improved for the addition-rubber-containing composites; the best results were obtained with the aggregate-rubber-containing composites. A reduction of 15% in flexural strength was observed for addition-rubber-containing composites and 25% for the aggregate-rubber-containing composites, roughly as expected if the flexural strength varies linearly with the rubber content. Furthermore, after 60 freezing and thawing cycles, a reduction of 75% in flexural strength was observed for the control specimens and only 20% for the addition-rubber-containing specimens.</description><subject>Acid resistance</subject><subject>acid tolerance</subject><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>cement</subject><subject>Composite materials</subject><subject>Composition effects</subject><subject>Concretes. Mortars. Grouts</subject><subject>Exact sciences and technology</subject><subject>Flexural strength</subject><subject>Freeze thaw cycles</subject><subject>Freeze-thaw durability</subject><subject>freezing</subject><subject>General (composition, classification, performance, standards, patents, etc.)</subject><subject>Materials</subject><subject>Materials science</subject><subject>Miscellaneous (including polymer concrete, repair and maintenance products, etc.)</subject><subject>Mortars (material)</subject><subject>Reduction</subject><subject>Rubber</subject><subject>Sodium hydroxide</subject><subject>sorption</subject><subject>Submerging</subject><subject>thawing</subject><subject>Transport properties</subject><subject>Weibull modulus</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkNtKw0AQhhdRsFafwaDoXeqeky14YUs9URGsvV42e5CUJFt30wvf3q0tCg4DAzPf_DP8AFwgOEIQk5vJ-PllMR3BbWAuCB5BzhkZGXsABogVJKclJIdgkMY4x5SjY3AS4yrhrMBoAG7fNlVlQ9760KuQad-ufax7G8fZzDmr-8y7327tuyzlOvi1DX1t4yk4cqqJ9mxfh2B5P3ufPubz14en6d081xShPqeqNJYXlVGQcCaoEkXFNTeKGCZcQVxZIVFQgYghiFe0slaYtIO4MgXjmgzB9U43nf7c2NjLto7aNo3qrN9EiUtCIaU0gZf_wJXfhC79JjFmghcIizJR4x2lg48xWCfXoW5V-JIIyq2vciK3vso_X-WPr9LYtHy1P6GiVo0LqtN1_FNgJUVc4MSd7zinvFQfITHLBYaIbyURZZR8AzqFglg</recordid><startdate>20040515</startdate><enddate>20040515</enddate><creator>Segre, N</creator><creator>Joekes, I</creator><creator>Galves, A. 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D</au><au>Rodrigues, J. A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rubber-mortar composites: Effect of composition on properties</atitle><jtitle>Journal of materials science</jtitle><date>2004-05-15</date><risdate>2004</risdate><volume>39</volume><issue>10</issue><spage>3319</spage><epage>3327</epage><pages>3319-3327</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><coden>JMTSAS</coden><abstract>The Weibull modulus of mortar specimens containing 35% (w/w of cement content) of NaOH-treated rubber particles was calculated showing a value of 9.1 for the control and 9.4 for the specimens with rubber, indicating that the incorporation of a high amount of rubber does not change the casting reproducibility. Since the flexural strength of these rubber-containing specimens was reduced by 43%, new composites were prepared using 10% of rubber as addition or aggregate. Water sorption by immersion, resistance to acid attack, flexural strength and freeze-thaw experiments were performed. Transport properties were improved for the addition-rubber-containing composites; the best results were obtained with the aggregate-rubber-containing composites. A reduction of 15% in flexural strength was observed for addition-rubber-containing composites and 25% for the aggregate-rubber-containing composites, roughly as expected if the flexural strength varies linearly with the rubber content. Furthermore, after 60 freezing and thawing cycles, a reduction of 75% in flexural strength was observed for the control specimens and only 20% for the addition-rubber-containing specimens.</abstract><cop>Heidelberg</cop><pub>Kluwer Academic Publishers</pub><doi>10.1023/B:JMSC.0000026932.06653.de</doi><tpages>9</tpages></addata></record> |
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subjects | Acid resistance acid tolerance Applied sciences Buildings. Public works cement Composite materials Composition effects Concretes. Mortars. Grouts Exact sciences and technology Flexural strength Freeze thaw cycles Freeze-thaw durability freezing General (composition, classification, performance, standards, patents, etc.) Materials Materials science Miscellaneous (including polymer concrete, repair and maintenance products, etc.) Mortars (material) Reduction Rubber Sodium hydroxide sorption Submerging thawing Transport properties Weibull modulus |
title | Rubber-mortar composites: Effect of composition on properties |
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