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

International Journal of Concrete Structures and Materials

Akeem Ayinde Raheem¹  Bolanle Deborah Ikotun² 

[1] Department of Civil Engineering, Ladoke Akintola University of Technology, Ogbomoso, Nigeria;Department of Civil and Chemical Engineering, University of South Africa, 1710, Johannesburg, South Africa;

关键词: nano-TiO;    wood ash;    setting times;    flexural strength;    compressive strength;    water absorption;   

DOI  :  10.1186/s40069-021-00456-x

来源: Springer

【 摘 要 】

This paper presents the findings of an investigation into the influence of green-synthesized nano-TiO2 on the characteristics 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 incorporation 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.

【 授权许可】

CC BY