Next Article in Journal
Aqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis
Next Article in Special Issue
Mechanical Characterization of High-Performance Steel-Fiber Reinforced Cement Composites with Self-Healing Effect
Previous Article in Journal
Consolidation of Hierarchy-Structured Nanopowder Agglomerates and Its Application to Net-Shaping Nanopowder Materials
Previous Article in Special Issue
Self-Healing of Microcracks in Engineered Cementitious Composites (ECC) Under a Natural Environment
Open AccessArticle

Experimental Study on Cementitious Composites Embedded with Organic Microcapsules

Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
Faculty of Civil Engineering and GeoSciences, Delft University of Technology, Delft 2600 AA, The Netherlands
Authors to whom correspondence should be addressed.
Materials 2013, 6(9), 4064-4081;
Received: 12 July 2013 / Revised: 20 August 2013 / Accepted: 9 September 2013 / Published: 16 September 2013
(This article belongs to the Special Issue Self-healing Concrete)
The recovery behavior for strength and impermeability of cementitious composites embedded with organic microcapsules was investigated in this study. Mortar specimens were formed by mixing the organic microcapsules and a catalyst with cement and sand. The mechanical behaviors of flexural and compression strength were tested. The results showed that strength could increase by up to nine percent with the addition of a small amount of microcapsules and then decrease with an increasing amount of microcapsules. An orthogonal test for investigating the strength recovery rate was designed and implemented for bending and compression using the factors of water/cement ratio, amount of microcapsules, and preloading rate. It is shown that the amount of microcapsules plays a key role in the strength recovery rate. Chloride ion permeability tests were also carried out to investigate the recovery rate and healing effect. The initial damage was obtained by subjecting the specimens to compression. Both the recovery rate and the healing effect were nearly proportional to the amount of microcapsules. The obtained cementitious composites can be seen as self-healing owing to their recovery behavior for both strength and permeability. View Full-Text
Keywords: self-healing concrete; organic microcapsules; permeability; recovery rate; healing effect self-healing concrete; organic microcapsules; permeability; recovery rate; healing effect
Show Figures

Figure 1

MDPI and ACS Style

Wang, X.; Xing, F.; Zhang, M.; Han, N.; Qian, Z. Experimental Study on Cementitious Composites Embedded with Organic Microcapsules. Materials 2013, 6, 4064-4081.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Back to TopTop