Lightweight concrete masonry units based on processed granulate of corn cob as aggregate

J. Faustino; E. Silva; J. Pinto; E. Soares; V. M.C.F. Cunha; S. Soares

doi:10.3989/mc.2015.04514

Authors

J. Faustino University of Trás-os-Montes e Alto Douro
E. Silva University of Trás-os-Montes e Alto Douro
J. Pinto University of Trás-os-Montes e Alto Douro - University of Beira Interior - University of Aveiro
E. Soares University of Trás-os-Montes e Alto Douro - University of Beira Interior
V. M.C.F. Cunha University of Trás-os-Montes e Alto Douro - ISISE, University of Minho
S. Soares University of Trás-os-Montes e Alto Douro - ISISE, University of Minho

DOI:

https://doi.org/10.3989/mc.2015.04514

Keywords:

Concrete, Brick, Organic raw material, Waste treatment, Compressive strength

Abstract

A research work was performed in order to assess the potential application of processed granulate of corn cob (PCC) as an alternative lightweight aggregate for the manufacturing process of lightweight concrete masonry units (CMU). Therefore, CMU-PCC were prepared in a factory using a typical lightweight concrete mixture for non-structural purposes. Additionally, lightweight concrete masonry units based on a currently applied lightweight aggregate such as expanded clay (CMU-EC) were also manufactured. An experimental work allowed achieving a set of results that suggest that the proposed building product presents interesting material properties within the masonry wall context. Therefore, this unit is promising for both interior and exterior applications. This conclusion is even more relevant considering that corn cob is an agricultural waste product.

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