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
Issue:
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
Abstract:
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.