Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 24th Aug 2026, 05:30:48am America, Santiago
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Daily Overview |
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21B: Civil & Construction Virtual location: VIRTUAL: Agora Meetings | |
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9:08am - 9:16am
CONCRETE WATERPROOFED WITH RICE HUSK ASH FOR COASTAL APPLICATIONS Universidad Tecnológica del Perú UTP - (PE), Perú In coastal regions, high relative humidity and salinity can cause concrete to degrade quickly. This study evaluates using rice husk ash (RHA) as a pozzolanic additive to improve the impermeability of materials in marine environments. A quantitative and experimental approach was used to prepare mixtures with 0%, 2%, 5%, and 10% RHA. Water absorption tests were performed according to standardized ASTM C642-13 procedures, and infiltration tests were conducted using a falling head permeameter. Results showed that the mixture with 10% RHA reduced absorption by 35% compared to the mixture without RHA and exhibited reduced water passage. X-ray fluorescence (XRF) analysis revealed 98.6% amorphous silica, confirming the additive's potential. Microscopic images revealed a denser microstructure with a higher RHA content. In conclusion, the study found that RHA is effective in waterproofing exposed concrete in marine areas | |