A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Properties of Self-Consolidating Engineered Cementitious Composite Modified with Rubber
This study aims to investigate the feasibility of utilizing waste rubber as a partial replacement for silica sand in the development of self-consolidating engineered cementitious composite (SCECC). The effects of the percentage of rubber (0–50%), rubber size [crumb rubber (CR) and powder rubber (PR)], and supplementary cementing materials (SCMs) (fly ash, ground-granulated blast-furnace slag, silica fume, and metakaolin) on the fresh and hardened properties of SCECC were studied. The results indicated that both CR and PR had promising potentials to be more economical and environmentally friendly alternative aggregates to develop sustainable SCECC with higher ductility. Although the inclusion of CR negatively affected the fresh and mechanical properties of SCECC, a number of successful mixtures with up to 30% CR could be developed with strengths greater than 40 MPa. The addition of PR showed a better performance in terms of fresh and mechanical properties compared with CR, allowing up to 40% replacement of rubber to be safely used. The inclusion of CR appeared to continuously increase the deformation capacity of SCECC up to 20% replacement level, while PR continued to improve the deformation capacity up to 50% replacement. Combining PR and different SCMs, especially metakaolin, allowed higher percentages of rubber to be used, achieving semi-lightweight concrete with adequate mechanical properties for multiple structural applications.
Properties of Self-Consolidating Engineered Cementitious Composite Modified with Rubber
This study aims to investigate the feasibility of utilizing waste rubber as a partial replacement for silica sand in the development of self-consolidating engineered cementitious composite (SCECC). The effects of the percentage of rubber (0–50%), rubber size [crumb rubber (CR) and powder rubber (PR)], and supplementary cementing materials (SCMs) (fly ash, ground-granulated blast-furnace slag, silica fume, and metakaolin) on the fresh and hardened properties of SCECC were studied. The results indicated that both CR and PR had promising potentials to be more economical and environmentally friendly alternative aggregates to develop sustainable SCECC with higher ductility. Although the inclusion of CR negatively affected the fresh and mechanical properties of SCECC, a number of successful mixtures with up to 30% CR could be developed with strengths greater than 40 MPa. The addition of PR showed a better performance in terms of fresh and mechanical properties compared with CR, allowing up to 40% replacement of rubber to be safely used. The inclusion of CR appeared to continuously increase the deformation capacity of SCECC up to 20% replacement level, while PR continued to improve the deformation capacity up to 50% replacement. Combining PR and different SCMs, especially metakaolin, allowed higher percentages of rubber to be used, achieving semi-lightweight concrete with adequate mechanical properties for multiple structural applications.
Properties of Self-Consolidating Engineered Cementitious Composite Modified with Rubber
Ismail, Mohamed K. (author) / Sherir, Mohamed A. A. (author) / Siad, Hocine (author) / Hassan, Assem A. A. (author) / Lachemi, Mohamed (author)
2018-01-18
Article (Journal)
Electronic Resource
Unknown
Properties of Self-Consolidating Engineered Cementitious Composite Modified with Rubber
| British Library Online Contents | 2018
Performance of Self-Consolidating Engineered Cementitious Composite under Drop-Weight Impact Loading
| British Library Online Contents | 2019