Preprint Short Note Version 1 Preserved in Portico This version is not peer-reviewed

Production of Hardened Body by Direct Bonding of Sand Particles

Version 1 : Received: 30 April 2021 / Approved: 4 May 2021 / Online: 4 May 2021 (13:44:27 CEST)
(This article belongs to the Research Topic Ecofriendly Materials)

How to cite: Sakai, Y. Production of Hardened Body by Direct Bonding of Sand Particles. Preprints 2021, 2021050017 (doi: 10.20944/preprints202105.0017.v1). Sakai, Y. Production of Hardened Body by Direct Bonding of Sand Particles. Preprints 2021, 2021050017 (doi: 10.20944/preprints202105.0017.v1).

Abstract

Raw materials used for producing concrete, such as sand and gravel, are in short supply worldwide. It has been reported that the production of cement, one of the main constituents of concrete, results in the emission of a large amount of CO2, accounting for 8% of total global CO2 emissions. In this study, we developed a method to produce a construction material using only sand as the solid raw material. By utilizing a technique to produce organic silicon material from sand, we placed sand, alcohol, and catalyst in a closed vessel and heated it to 240 °C. After 24 h, the sand particles were bonded to each other, and a hardened body was formed. A tradeoff in production conditions, such as temperature, time, and the amount of sand, was confirmed.

Subject Areas

Sand, Cement-Free, Catalyst

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