Investigating Abrasion Resistance of Steel-Polypropylene Hybrid Fiber-Reinforced Concrete Using Statistical Experimental Design

Ma-Chine Hsie ； Guo-Huei Chen ； Pey-Shiuan Song

《International Journal of Pavement Research and Technology》 4卷5期 (2011/09) Pp. 274-280

https://doi.org/10.6135/ijprt.org.tw/2011.4(5).274

並列摘要

This study investigated the abrasion resistance of steel-polypropylene hybrid fiber-reinforced concrete (SPHFRC). Of the steel fiber (S) types, S1, S2, and S3 were hooked-end, and S4 was crimped. The additional fiber type was polypropylene (P). The L16 orthogonal array and analysis of variance (ANOVA) method were applied in the analysis of the main and interaction effects on the mechanical properties of SPHFRC. The analytical results demonstrate that P fibers contributed most to compressive strength, and S2 fibers contributed most to the modulus of rupture (MOR). For abrasion resistance, P fibers contributed most of the abrasion resistance during the initial stage, while S2 fibers contributed the most during the final stage. The R2 for accumulated abrasion resistance with compressive strength during the initial stage was 0.9925 and declined to 0.8300 as the abrasion increased. The R^2 for accumulated abrasion resistance with MOR during the initial stage was 0.6968 and increased to 0.9473 as the abrasion increased. For interaction effects, P×S1 and P×S2 reached a significant level of compressive strength; S1×S3 and S2×S3 reached a significant level of MOR; P×S1 and P×S2 reached a significant level of abrasion resistance during the initial stage; and S1×S3 and S2×S3 reached a significant level of abrasion resistance during the final stage.

並列關鍵字

Abrasion resistance ； Analysis of variance ； Steel-polypropylene hybrid fiber-reinforced concrete