Journal
MATERIALS
Volume 14, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/ma14123216
Keywords
mortar; compressive strength; chloride resistance; capillary absorption
Categories
Funding
- National Natural Science Foundation of China [52008003]
- Anhui Province Science and Technology Plan Project of Housing Urban-rural Construction [2020-YF12, 2020-YF14]
- Research Foundation of the Institute of Environment-friendly Materials and Occupational Health (Wuhu)
- Anhui University of Science and Technology [ALW2020YF16]
- Key Research and Development Program Project of Anhui Province [201904a07020081]
- Nature Science Foundation of Anhui [1908085QE213]
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The study found that using rice husk ash as a partial substitute for cement in rubber mortar can increase compressive strength without compromising it, and has positive effects on chloride resistance and capillary absorption. A dosage of 15% RHA was determined to be optimal for these enhancements.
In this study, rice husk ash (RHA) was explored as a strength enhancer for mortars containing waste rubber. The effects of RHA on the flow, mechanical strength, chloride resistance, and capillary absorption of rubber mortar were investigated by substituting up to 20% cement with RHA. The experimental results showed that the incorporation of rubber into mortar could be safely achieved by adding RHA as a cement substitute by up to 20% without compromising the compressive strength of mortar. Moreover, the RHA also exerted positive effects on the enhancement of the chloride resistance as well as the capillary absorption of rubber mortars, for which 15% RHA was found to be the optimal dosage.
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