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, 04:43:20am America, Santiago
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Daily Overview |
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21B: Civil & Construction Virtual location: VIRTUAL: Agora Meetings | |
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9:24am - 9:32am
Aloe vera Extract as a Natural Foaming Agent on the Density and Compressive Strength of Concrete Universidad Privada del Norte - (PE), Perú This study aimed to evaluate the influence of Aloe vera extract as a natural foaming agent on the physical and mechanical properties of concrete. Mixtures were prepared with three dosages of additive (2%, 4%, and 6% by weight of cement) and without additive. Two concrete specimens were made from each of these mixtures, for a total of eight specimens. The method was experimental, applying slump tests (NTP 339.035), density tests (NTP 339.046), and compressive strength tests at 28 days (NTP 339.034). The results showed that Aloe vera progressively reduced workability, decreasing from a fluid slump of 16.5 cm (without additive) to 13.7 cm (2%), 13.9 cm (4%), and 9.6 cm (6%). Regarding density, it decreased from 2307.16 kg/m³ to 1988.36 kg/m³, 1974.00 kg/m³, and 1969.07 kg/m³, respectively. Compressive strength also decreased from 234.86 kg/cm² (without additive) to 232.44 kg/cm² (2%), 162.72 kg/cm² (4%), and 136.73 kg/cm² (6%). It is concluded that the Aloe vera extract entrains air in the mix, lightens the concrete, and maintains acceptable strengths up to a 4% addition, confirming its potential as a sustainable alternative to synthetic foaming agents. | |