Evaluation of soil-cement blocks for sustainability and habitability in accordance to the Brazilian standard ABNT NBR 15575

Materia

Grigoletti, Giane de Campos¹  Lima, Rogério Cattelan Antocheves de²  Giorgi, Priscila³ 

[1] Universidade Federal de Santa Maria, Santa Maria, Brasil;Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil;Universidade Regional Integrada do Alto UruguaiURI, Santo Ângelo, Brasil

关键词: Soil-cement;    Building Performance;    Habitability;    Sustainability.;   

DOI  :  10.1590/s1517-707620180003.0511

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

The building sector is responsible for significant consumption of natural resources. Sustainable buildings contributes to the reduction of environmental impacts such as energy consumption, soil, and water and air pollution. In this scenario, raw soil as a building material has become an alternative for the development of sustainable buildings. Raw soil is cured without burning. Raw soil mixed with Portland cement, pressed and stabilized produces soil-cement blocks and they are already regulated by the Brazilian technical standards association (Associa̤̣o Brasileira de NormasT̩cnicas РABNT) and possesses many advantages related to its manufacturing and use. To increase its acceptance and verify its efficiency as a building material for social housing, it is necessary to investigate its properties and performance. The present study aimed to evaluate the performance of an external vertical sealing system composed of hollow blocks of soil-cement without structural function for social housing, following determinations of ABNT NBR 15575, focusing on the requirements of habitability and sustainability. It was analysed tightness against rainwater and water permeability, habitability requirements, and durability, sustainability requirement, through heat action and thermal shock testings. The system met limits set by standards for tightness against rainwater and heat action and thermal shock, but not for water permeability. The vertical sealing system composed of hollow blocks of soil-cement has potential for application in the construction, but there is still need for more studies on the system.

【 授权许可】

CC BY