We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Micromechanical Properties of Self-Healing Concrete with Crystalline Admixture and Silica Fume.
- Authors
Reddy, Chandra Sekhara; Ravitheja, A.; Sashidhar, C.
- Abstract
The study aimed at examining the capacity of diverse add-ons in improving the self-healing ability of fiber-reinforced concrete through low water-cement ratios (w/c) and exposure to wide cracks. The self-healing capacities of crystalline admixture (CA) and silica fume (SF) were assessed by mechanical and durability performance. The effect of various exposure periods (7 to 42 days) in four different exposure conditions--namely, water immersion, wettingand- drying cycles, water contact, and air exposure (AE)--on selfhealing was evaluated by application of through-crack compressive stress. Compressive strength and durability analysis showed that CA with 10% SF was excellent in all four environments. Fouriertransform infrared spectroscopy and scanning electron microscope results showed significant bond formation contributing to the selfhealing property of the CAs. Therefore, concrete mixture with CA and 10% SF is recommended for use to increase the self-healing of concrete.
- Subjects
SELF-healing materials; CONCRETE additives; SILICA fume; SILICA; SCANNING electron microscopes; FIBER-reinforced concrete
- Publication
ACI Materials Journal, 2020, Vol 117, Issue 3, p63
- ISSN
0889-325X
- Publication type
Article
- DOI
10.14359/51722395