(1070)--Mechanical properties and absorp建筑材料学建筑材料学.pdf

Construction and Building Materials 277 (2021) 122324 Contents lists available at ScienceDirect Construction and Building Materials journal homepage: /lo cate/conbuildmat Mechanical properties and absorption of lightweight concrete using lightweight aggregate from diatomaceous earth Muttaqin Hasan ⇑, Taufiq Saidi, Mochammad Afifuddin Department of Civil Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia h i g h l i g h t s Properties of LWA concrete made from diatomaceous earth (DE) were studied. Aggregates made by burning chunks of DE produced non-structural LWA concrete. Aggregates made through DE pellets were able to produce structural LWA concrete. The addition of 5% sawdust to the pellet increased the properties of LWA concrete. a r t i c l e i n f o a b s t r a c t Article history: Diatomaceous earth has a low density and this makes the material useful in producing lightweight aggre- Received 15 September 2020 gates. Therefore, this research was conducted to study the mechanical properties including the compres- Received in revised form 19 December 2020 sive strength, modulus of elasticity, splitting tensile strength, and flexural strength as well as the Accepted 5 January 2021 absorption of the lightweight concrete produced from the lightweight aggregates. Moreover, two meth- Available online 21 January 2021 ods were used to produce lightweight aggregates and the first was by burning diatomaceous earth