Conference Agenda

The general objective of this research was to determine how the architectural design of a geriatric residence can improve the quality of life for older adults in the 26 de October district of Piura. Therefore, the study was conducted using a qualitative, descriptive, and propositional approach, with an applied scope, employing direct observation, architectural analysis forms, and semi-structured interviews with older adults. The sample consisted of geriatric residences and private homes in the 26 de October district and Piura, analyzed according to criteria of accessibility, environmental comfort, and autonomy. The results showed that adequate functional distribution, universal accessibility, and passive bioclimatic strategies are essential for improving the habitability and well-being of residents. However, deficiencies were observed in accessible signage, thermal control, and safety conditions in the homes of the 26 de October district, which limit daily autonomy and increase the risk of accidents. It is concluded that a humanized, flexible architectural design adapted to the climatic context of Piura strengthens the autonomy, safety, and quality of life of older adults. Therefore, architecture demonstrates that by integrating accessibility, sustainability, and a gerontological approach, it becomes an effective tool for promoting dignified, healthy, and sustainable aging for older adults in urban contexts such as the 26 de October district

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

The increasing deterioration of flexible pavements, associated with the growth of vehicular traffic, has created the need to assess alternatives that, in addition to reusing end-of-life tires, modify the behavior of asphalt mixtures. In this context, the present study analyzed the influence of incorporating 12% crushed rubber, relative to the weight of the asphalt, on the mechanical properties of asphalt briquettes, comparing them with a control mixture without modification.
Twelve briquettes were prepared (six control and six with rubber), keeping the gradation and total mixture weight constant by partially replacing the asphalt with rubber. The Marshall test indicated that the modified briquettes presented an optimum asphalt content of 5.54%, with VTM = 5%, VMA = 16%, and VFA = 68%, values considered acceptable for heavy traffic conditions. However, their stability was 1,590 lb, the flow was 4.2 mm, and the density was 2,140 kg/m³, reflecting a more flexible and less rigid mixture.
In contrast, the control briquettes achieved an optimum asphalt content of 4.10%, with VTM = 3%, VMA = 11%, and VFA = 65%, as well as a stability of 3,400 lb, a flow of 9 mm, and a density of 2,223 kg/m³, indicating greater stiffness. Finally, these results show a trend consistent with previous studies on rubber-modified asphalt mixtures, in which a decrease in stiffness accompanied by an increase in flexibility and controlled deformation capacity has been reported, confirming that the addition of rubber represents a technically viable and environmentally sustainable alternative for pavements subjected to heavy traffic

The construction sector continuously seeks materials that improve the durability and performance of structures. This study evaluates the effect of adding food-grade Titanium Dioxide TiO₂ on the physical and mechanical properties of cement mortars. Mixtures were prepared with TiO₂ substitutions of 0%, 0.5%, 1.0%, and 1.5% by weight of cement. The specimens were subjected to tests for compressive strength, absorption, capillarity, permeability, and resistance to accelerated weathering (freeze-thaw cycles). The results indicate that the addition of TiO₂ positively influences the long-term compressive strength (28 days), showing a significant increase at 1.5% TiO₂. Likewise, a reduction in water absorption and the capillary coefficient was observed, especially at the 1.5% dosage, suggesting a densification of the mortar matrix. Permeability showed variable behavior, while weathering resistance improved notably, with a reduction in the degradation of the specimen edges as the percentage of TiO₂ increased. It is concluded that TiO₂, particularly at 1.5%, acts as an efficient modifier of the mortar microstructure, enhancing its durability and mechanical strength, thus positioning it as a promising additive for the production of high-performance mortars.

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.

This study examines the predictive relationship between cognitive abilities assessed during the university admission process—specifically mathematical, spatial, and verbal reasoning—and academic performance after the first semester of engineering education. The aim is to identify which cognitive components best forecast students’ early success in STEM-related diagnostic evaluations. A correlational, ex post facto, longitudinal design was applied using institutional data from a higher education institution based in Ecuador. The dataset included 4,813 applicants who completed the Admission Aptitude Test and 248 students who later undertook disciplinary diagnostic tests in Mathematics, Physics, Chemistry, and Language after a leveling semester. Correlation and multiple regression analyses were conducted to examine associations and predictive effects. Mathematical aptitude was the strongest and most consistent predictor of diagnostic performance, particularly in Mathematics and Chemistry. Spatial aptitude showed moderate predictive power in Physics and Chemistry, whereas verbal aptitude exhibited weak or nonsignificant relationships, especially in Language. These results confirm the central role of quantitative reasoning in early engineering achievement. The study is limited to one institution and one admission cycle, restricting generalizability. Future research should explore longitudinal effects and integrate non-cognitive variables such as motivation and self-efficacy to construct more comprehensive predictive models. Findings support incorporating validated aptitude assessments into admission processes and strengthening mathematical and spatial reasoning through preparatory or remedial programs.