Self-Healing of Glass Fibre Reinforced Concrete (GRC) and Polymer Glass Fibre Reinforced Concrete (PGRC) Using Crystalline Admixtures
Construction and Building Materials 2021
Sandra Guzlēna, Gita Šakale

In this study glass fibre reinforced concrete (GRC) with and without polymer was used as base material to evaluate concrete self-healing enhanced by crystalline admixture. GRC was used because of fibre reinforcement which allow to control width of crack during sample pre-cracking. Properties, like flexural strength, volumetric weight, water absorption and open porosity of GRC and PGRC were evaluated. XRD and FTIR were used to investigate crystalline admixtures produced by different manufacturers. Crystalline admixtures were added 1% from cement. Samples were pre-cracked after 28 days. After pre-cracking samples were fully immersed in water during healing process. Analysis of GRC and PGRC sample self-healing was made. Crack healing rate was monitored for 8 weeks for samples with crystalline admixture, which achieved the best results in crack healing. Results showed difference in self-heling start between GRC and PGRC samples.


Keywords
Crystalline admixture | GRC | Self-healing
DOI
10.1016/j.conbuildmat.2020.120963
Hyperlink
https://www.sciencedirect.com/science/article/abs/pii/S0950061820329688?via%3Dihub

Guzlēna, S., Šakale, G. Self-Healing of Glass Fibre Reinforced Concrete (GRC) and Polymer Glass Fibre Reinforced Concrete (PGRC) Using Crystalline Admixtures. Construction and Building Materials, 2021, Vol. 267, Article number 120963. ISSN 0950-0618. Available from: doi:10.1016/j.conbuildmat.2020.120963

Publication language
English (en)
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