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Title: Characteristics of Wood Ash Cement Mortar Incorporating Green-Synthesized Nano-TiO2

Author(s): Bolanle Deborah Ikotun and Akeem Ayinde Raheem

Publication: IJCSM

Volume: 15


Appears on pages(s):

Keywords: nano-TiO2, wood ash, setting times, flexural strength, compressive strength, water absorption

DOI: 10.1186/s40069-021-00456-x

Date: 5/31/2021

This paper presents the findings of an investigation into the influence of green-synthesized nano-TiO2 on the charac-teristics of wood ash (WA) cement mortar. Mortar specimens were prepared by partial replacement of cement with WA (10% by weight) and addition of 1, 2 and 3% nano-TiO2 by weight of binder; using constant water-to-binder ratio (w/b) for all mixtures. The properties evaluated are setting time of the binder and flexural and compressive strength with water absorption of the mortar. The results indicated that addition of 1 and 2% nano-TiO2 reduced setting times of WA cement paste. Also, the flexural and compressive strength of WA cement mortar were higher with the incorpo- ration of up to 2% nano-TiO2. The water absorption of WA cement mortar was reduced when nano-TiO2 was added with 2% incorporation having the best result. The incorporation of NT in WA cement mortar improved its workability and strength characteristics.