creators_name	Oliveira, Alexandre
creators_name	Pereira, Alice S.
creators_name	Lemos, Paulo C.
creators_name	Guerra, Joćo P.
creators_name	Silva, Vitor
creators_name	Faria, Paulina
type	article
datestamp	2022-03-27 21:43:03
lastmod	2022-03-27 21:43:03
metadata_visibility	show
title	Effect of innovative bioproducts on air lime mortars
ispublished	pub
subjects	C04
subjects	F06
subjects	F11
full_text_status	none
keywords	Air lime mortars
keywords	Bioformulation
keywords	Crude-glycerol based microbial ixed cultures bioproduct
keywords	Durability
keywords	Escgerichia coli-based bioproduct
keywords	Sustainability
keywords	lime mortars
keywords	mortars
abstract	In this work , air lime mortars were bioformulated with two innovative bioproducts, one resulting from iron supplemented Escherichia coli cultures and a second one exploiting microbial mixed cultures grown with crude glycerol as substrate. The bioproducts were lyophilized and, for the mortar formulation, suspended in water and used as mixing liquid. Workability of mortars was evaluated by the flow table consistence and 90-days-old samples were tested for different properties, such as thermal conductivity, bulk density, porosimetry, water absorption, drying, surface hardness and compressive strength. With water content to ensure workability, bioformulated mortars presented higher thermal insulation and reduced water absorption when compared with a non-bioformulated control mortar. However, the presence of bioproducts decreased the compressive strength of the air lime mortar. Contact with water, simulating weathering, diminished that decrease. The strategy utilized in the present work meet so me of the goals of a circular economy approach maximizing natural resources by the use of wastes to produce the bioproducts and increasing lime mortars durability.
date	2021
date_type	published
publication	Journal of Building Engineering
volume	35
publisher	Elsevier
pagerange	101985
id_number	doi:10.1016/j.jobe.2020.101985
refereed	TRUE
issn	23527102
official_url	https://doi.org/10.1016/j.jobe.2020.101985
citation	Oliveira, Alexandre et Pereira, Alice S. et Lemos, Paulo C. et Guerra, Joćo P. et Silva, Vitor et Faria, Paulina (2021) Effect of innovative bioproducts on air lime mortars. Journal of Building Engineering, 35 . p. 101985. ISSN 23527102 [Article]