TY  - JOUR
VL  - 14
A1  - Loganathan, R.
A1  - Mohammed, B.S.
JF  - Materials
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85110273111&doi=10.3390%2fma14133765&partnerID=40&md5=75a05a9e20ed507aaa62e822cecdabf4
PB  - MDPI AG
SN  - 19961944
Y1  - 2021///
ID  - scholars14779
TI  - Properties of rubberized engineered cementitious composites containing nano-silica
KW  - Additives; Bending strength; Cement manufacture; Compressive strength; Elastic moduli; Engineered cementitious composite; Fly ash; Mixtures; Rubber applications; Rubber industry; Shrinkage; Silica
KW  -  Cementitious materials; Direct tensile strengths; Drying shrinkages; Elevated temperature; Engineered cementitious composite (ECC); Explosive spalling; Poly (vinyl alcohol) (PVA); Response surface methodology
KW  -  Tensile strength
IS  - 13
N2  - To avoid explosive spalling during elevated temperature, crumb rubber (CR) is being added to the manufacturing of engineered cementitious composites (ECC). However, the addition of CR particles adversely affects the mechanical properties of ECC. Therefore, to overcome this issue, nano-silica (NS) is added into rubberized ECC mixture as cementitious material additives. Response surface methodology (RSM) has been utilized to optimize the mixtures of the rubberized ECC with variables: CR (0, 2.5, and 5 vol.), polyvinyl alcohol (PVA) fiber (0, 1, and 2 vol.), NS (0, 1, and 2 vol.), and fly ash (0, 25, and 50 vol.). The experimentally measured responses are flexural strength, direct tensile strength, elastic modulus, Poissonâ??s ratio, creep, and drying shrinkage. Mathematical models to predict the targeted responses have been developed using RSM. As a result, a high correlation between the factors and responses has been exhibited by the developed models and the accuracy of fit, where less than 9.38 of the variation was found between the predicted and validated results. The experimental results revealed that the rubberized ECC with the incorporation of nano-silica exhibited a higher compressive strength, direct tensile strength, flexural strength, elastic modulus, Poissonâ??s ratio, and lower drying shrinkage. Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
N1  - cited By 9
AV  - none
ER  -