Physical-mechanical performance criteria of cement-soil mortars for earth building coating
Soil as a mortar aggregate may improve the physical-mechanical compatibility between the coating system and earth-wall substrate, as well as present greater durability when stabilised with cement. Based on these concepts, the physical-mechanical behaviour of mortars comprising soil, cement, lime and...
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| Format: | Online |
| Langue: | eng |
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ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
2018
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| Accès en ligne: | https://seer.ufrgs.br/ambienteconstruido/article/view/72000 |
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ojs-article-720002019-01-08T18:41:31Z Physical-mechanical performance criteria of cement-soil mortars for earth building coating Milani, Ana Paula da Silva Dias, Flávia Gaspar Rangel hydrated lime; air entraining agent; bonding; workability; shrinkage Soil as a mortar aggregate may improve the physical-mechanical compatibility between the coating system and earth-wall substrate, as well as present greater durability when stabilised with cement. Based on these concepts, the physical-mechanical behaviour of mortars comprising soil, cement, lime and admixture was analysed to be used as coating for earth constructions. Cement-soil mortars using the ratio of sandy soil equal to or less than 1:6 in the cement:soil dosage shows a potential for an application as earth wall coating. However, to improve its workability in the fresh state, it is necessary to add hydrated lime or chemical admixture at a limited proportion so it does not damage the physical performance of the mortar. To qualify the cement-soil mortars for earth building coating, the minimum requirements for volumetric shrinkage, tensile bond strength and compressive strength must be met simultaneously and the following criteria are indicated: minimum compressive strength of 4 MPa; zero volumetric shrinkage index and minimum tensile bond strength of 0.20 MPa. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2018-06-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/72000 Ambiente Construído; v. 18, n. 2 (2018): Edição especial sobre Tecnologia das Argamassas; 133-142 Ambiente Construído; v. 18, n. 2 (2018): Edição especial sobre Tecnologia das Argamassas; 133-142 Ambiente Construído; v. 18, n. 2 (2018): Edição especial sobre Tecnologia das Argamassas; 133-142 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/72000/48348 Direitos autorais 2018 Ambiente Construído https://creativecommons.org/licenses/by/4.0 |
| institution |
Universidade Federal do Rio Grande do Sul |
| collection |
OJS |
| language |
eng |
| format |
Online |
| author |
Milani, Ana Paula da Silva Dias, Flávia Gaspar Rangel |
| spellingShingle |
Milani, Ana Paula da Silva Dias, Flávia Gaspar Rangel Physical-mechanical performance criteria of cement-soil mortars for earth building coating |
| author_facet |
Milani, Ana Paula da Silva Dias, Flávia Gaspar Rangel |
| author_sort |
Milani, Ana Paula da Silva |
| title |
Physical-mechanical performance criteria of cement-soil mortars for earth building coating |
| title_short |
Physical-mechanical performance criteria of cement-soil mortars for earth building coating |
| title_full |
Physical-mechanical performance criteria of cement-soil mortars for earth building coating |
| title_fullStr |
Physical-mechanical performance criteria of cement-soil mortars for earth building coating |
| title_full_unstemmed |
Physical-mechanical performance criteria of cement-soil mortars for earth building coating |
| title_sort |
physical-mechanical performance criteria of cement-soil mortars for earth building coating |
| description |
Soil as a mortar aggregate may improve the physical-mechanical compatibility between the coating system and earth-wall substrate, as well as present greater durability when stabilised with cement. Based on these concepts, the physical-mechanical behaviour of mortars comprising soil, cement, lime and admixture was analysed to be used as coating for earth constructions. Cement-soil mortars using the ratio of sandy soil equal to or less than 1:6 in the cement:soil dosage shows a potential for an application as earth wall coating. However, to improve its workability in the fresh state, it is necessary to add hydrated lime or chemical admixture at a limited proportion so it does not damage the physical performance of the mortar. To qualify the cement-soil mortars for earth building coating, the minimum requirements for volumetric shrinkage, tensile bond strength and compressive strength must be met simultaneously and the following criteria are indicated: minimum compressive strength of 4 MPa; zero volumetric shrinkage index and minimum tensile bond strength of 0.20 MPa. |
| publisher |
ANTAC - Associação Nacional de Tecnologia do Ambiente Construído |
| publishDate |
2018 |
| url |
https://seer.ufrgs.br/ambienteconstruido/article/view/72000 |
| work_keys_str_mv |
AT milanianapauladasilva physicalmechanicalperformancecriteriaofcementsoilmortarsforearthbuildingcoating AT diasflaviagasparrangel physicalmechanicalperformancecriteriaofcementsoilmortarsforearthbuildingcoating |
| _version_ |
1709370618695122944 |