Strict Standards: Declaration of SubmissionKeywordEntryDAO::getByControlledVocabId() should be compatible with ControlledVocabEntryDAO::getByControlledVocabId($controlledVocabId, $rangeInfo = NULL, $filter = NULL) in /home/revistas/public_html/lib/pkp/classes/submission/SubmissionKeywordEntryDAO.inc.php on line 20
Warning: Cannot modify header information - headers already sent by (output started at /home/revistas/public_html/lib/pkp/classes/submission/SubmissionKeywordEntryDAO.inc.php:20) in /home/revistas/public_html/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 836
Warning: Cannot modify header information - headers already sent by (output started at /home/revistas/public_html/lib/pkp/classes/submission/SubmissionKeywordEntryDAO.inc.php:20) in /home/revistas/public_html/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 837
Mortar modified with sulfonated polystyrene produced from waste plastic cups
| IBRACON Structures and Materials Journal
Mortar modified with sulfonated polystyrene produced from waste plastic cups
Leila Aparecida de Castro Motta
Universidade Federal de Uberlândia/Faculdade de Engenharia Civil
Júlia Graciele Vieira
Universidade Federal de Uberlândia/Faculdade de Engenharia Civil
Thiago Henrique Omena
Universidade Federal de Uberlândia/Faculdade de Engenharia Civil
Fernanda Alves Costa Faria
Universidade Federal de Uberlândia/Instituto de Química
Guimes Rodrigues Filho
Universidade Federal de Uberlândia/Instituto de Química
Rosana Maria Nascimento de Assunção
Universidade Federal de Uberlândia/Instituto de Química
Abstract
In this work was studied the addition of sulfonated polystyrene produced from waste plastic cups as admixture for mortars. Mortars were analyzed with polystyrene content of 0.0; 0.2; 0.6; 1.0 and 1.4% in relation to the cement mass. The influence of polystyrene in the mortars properties was evaluated by consistency index, water retention, water absorption, porosity, elasticity modulus, compressive strength, flexural strength, bond tensile strength and microscopy. In relation to mortar without admixture, modified mortar showed increase in water retention and consistency index, besides great increase in flexural strength and bond tensile strength. However, the increase in the sulfonated polystyrene content decreased elasticity modulus of the mortar and despite higher porosity, there was reduction of water absorption by capillarity.
