Mechanical properties of powder concrete with a geopolymer bond

Kushartomo, Widodo and Sofianto, Sofianto Mechanical properties of powder concrete with a geopolymer bond. Mechanical properties of powder concrete with a geopolymer bond.

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Abstract

Commonly, the manufacturing of Reactive Powder Concrete (RPC) uses a portlant
cement as a binder. This research introduce a powder based concrete with an eco- friendly
geopolymer binder. The production of geopolymer-powder concrete is believed as an
alternative to reduce large amounts of CO
2
released into the air. A geopolymer is obtained
by mixing a fly ash as residual of coal burning waste with lye which is the mixture of sodium
hidroxide and sodium silicate. Apart from that, glass powder is used to replace quartz
powder (with similar quantity) in the manufacturing of this concrete . In producing of
geopolymer-powder concrete, 4 mixed variations have been used based on the volume ratio
between geopolymer and glass powder. To investigate the mechanical characteristic of
geopolymer-powder concrete, several tests include compressive-, flexural-, and split-tensile
strength test were conducted using a 20 cm x 10 cm cylindrical speciment and a cube of 40
cm x 10 cm x 10 cm. The test results prove that using 20% of geopolymer mixture, the
specimen can achieve the compressive strength of 15,97 MPa, flexural strength of 5,49 MPa,
and split-tensile strength of 2,90 MPa.

Item Type:	Article
Subjects:	Penelitian > Fakultas Teknik
Divisions:	Fakultas Teknik > Teknik Sipil
Depositing User:	Puskom untar untar
Date Deposited:	28 Dec 2020 08:58
Last Modified:	28 Dec 2020 08:58
URI:	https://repotest.untar.ac.id/id/eprint/13908

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