Mechanical and self-healing behavior of low carbon engineered cementitious composites reinforced with PP-fibers

By He-hua Zhu, Duo Zhang, Tianyu Wang, Hao-liang Wu, Victor C. Li. 2020

201 citations recorded by the source corpus.

Abstract While the ultrahigh tensile ductility and superior durability of Engineered Cementitious Composites (ECC) have been demonstrated, the relatively high energy and carbon intensity, as well as high material cost present potential impediments to broader ECC applications. The objective of this research is to develop a more sustainable and cost-effective ECC. The ordinary Portland cement (OPC) and the commonly used PVA fiber in conventional ECC were replaced by limestone calcined clay cement (LC3) and polypropylene (PP) fiber, respectively. The ECC compressive strength, tensile stress-strain relationship, and microcrack self-healing behavior were studied at three water to binder ratios (0.3, 0.2, 0.16). The novel LC3-PP-ECC showed a tensile strain capacity of greater than 6% and an intrinsically tight crack width below 82 μm when loaded to 1% tensile strain. Further, the LC3-PP-ECC demonstrated efficient recovery of the composite tensile ductility and ultimate tensile strength through self-healing. Compared to typical ECC made with OPC and PVA fiber, the material cost, embodied energy and carbon footprint of LC3-PP-ECC are reduced by 61%, 45%, and 48%, respectively. The superior mechanical properties and durability combined with the low environmental impact and cost for material production promote LC3-PP-ECC as a sustainable material for structural and non-structural applications.

Subfields: Civil and Structural Engineering, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/d6af20414b5b99062b6506fc7f2a56607c5ba306

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Civil and Structural Engineering

1. Duo Zhang
2. He-hua Zhu
3. B. Jaworska
4. K. Dahlquist
5. Victor C. Li
6. M. Şahmaran
7. E. Yang
8. Motohiro Ohno

In Environmental Engineering

1. Duo Zhang
2. He-hua Zhu
3. Victor C. Li
4. N. De Belie
5. K. Van Tittelboom

Citations in the corpus

• Engineered Cementitious Composites (ECC) with limestone calcined clay cement (LC3) (2020, background): “Previous studies [20,21] show that blending limestone and calcined clay in ECC binders could result in tensile strain capacities of”