Conference Agenda

The general objective of this research is to analyze the deterioration of the infrastructure and the state of conservation of the heritage houses that are located in the historic center of (Trujillo) in 2024 and to know if they are being protected because they are part of our identity. culture in the sustainable growth of cities and communities (SDG 11). In this research, a qualitative approach was used, where the study sample was 71 houses in the historic center of Trujillo; the instrument used was an observation sheet where the deterioration of the houses was evaluated and a survey that evaluated the level of conservation of the houses. mansions. As a result, it is observed that 21.5% of the houses show deterioration as a result of natural phenomena. Furthermore, when evaluating the level of conservation in the mansions, it was observed that 70.9% present a medium state of conservation and 54.5% present a low level of restoration. Additionally, through the rho spearman statistical test, there is an inverse relationship between the deterioration of the infrastructure and the conservation of the mansions, which is negative and its significant level is less than 1% (p < 0.01). In conclusion, we have that the mansions in the historic center They have a high level of deterioration, which is why there is an urgent need to become aware of conserving our historical and cultural heritage.

Concrete is a fundamental material in construction, but its high cement consumption contributes significantly to global CO₂ emissions. To promote sustainability, this study explores the use of seashell powder as a partial cement replacement in ecological concrete. The research assesses its impact on compressive strength, focusing on 28-day performance. Cement was substituted with seashell powder at 4%, 8%, and 12%, and concrete specimens were tested at 7, 14, 21, and 28 days. The results showed that 4% and 8% replacement enhanced compressive strength at 28 days, while 12% led to a reduction compared to the control mix. The study confirms the viability of seashell powder as an alternative material, recommending an optimal replacement rate of 8% to improve strength while promoting environmental sustainability.

This study conducts a bibliometric analysis of sustainable architecture and innovative materials in multifamily housing in Latin America, examining research trends from 2021 to 2024 based on publications indexed in Scopus and Web of Science. The findings reveal a growing body of research, with Brazil, Chile, and Ecuador emerging as primary contributors, while Spain and Portugal play a key role in international collaborations. The study identifies central research themes, such as "social housing," "circular economy," "energy efficiency," and "construction industry," underscoring the increasing focus on sustainability and resource efficiency in the built environment. Emerging topics, including "modular construction" and "embodied carbon," highlight the shift toward innovative low-impact construction strategies. The thematic mapping categorizes research areas into established, emerging, and niche domains, offering insights into the evolution of sustainable building practices in the region. The results indicate a progressive integration of circular economy principles and energy-efficient strategies, although barriers remain in regulatory adaptation and large-scale implementation.

This study examines the challenges associated with air entrapment during the draining process in water supply systems, focusing on developing an analytical solution for the dynamics of the pressure in inclined pipelines. Air pockets trapped in water columns can lead to various operational issues, such as water hammer, flow reduction, pressure oscillations, and potential structural damage. This research builds on previous numerical models that describe air-water interactions in a single inclined pipe with a sealed upper end. The model was initially formulated using a system of three equations: two ordinary differential equations (ODEs) and one algebraic equation. The primary objective of this study is to derive an analytical solution for the case where the air pocket remains closed. To achieve this, the initial model is reduced to a system of two first-order nonlinear ODEs, allowing for an analysis of the existence and uniqueness of solutions. It is then further transformed into a second-order nonlinear ODE to facilitate an intuitive examination of its oscillatory behavior. A numerical validation of this model confirms its accuracy in predicting the physical system's behavior. Additionally, through a variable transformation, the second-order ODE is converted into a first-order linear ODE, potentially simplifying the derivation of an explicit analytical solution. This research extends the understanding of transient hydraulic dynamics during the draining process in pipelines with air-water interaction. The findings provide an analytical framework that complements previous numerical solutions, offering valuable insights for optimizing hydraulic system design and performance.

Clay soils can be problematic in construction due to their high deformability and low shear strength values. Factors such as high humidity and the presence of clayey materials promote soil expansion and contraction, which generates deformations in civil structures. Several studies have shown that the use of rice husk ash and lime as stabilizers improves the properties of clay soils. This article examines the use of rice husk ash (RHA) and lime to improve the mechanical and hydraulic properties of low plasticity (LP) clay soils. For this purpose, Sieve Analysis, Liquid Limit, Moisture Content, Specific Gravity of Solids, Standard Proctor Compaction, Unconfined Compressive Strength and Variable Load Permeability tests were performed in order to evaluate the influence of these stabilizers on soil behavior. The results showed that the addition of CCA and lime improved the mechanical and hydraulic properties of the low plasticity clayey soil, showing an increase in the unconfined compressive strength and a significant improvement in the modulus of elasticity of the stabilized soils. Among all the samples tested, it was determined that the optimal percentage of CCA is 10% and that of lime is 5% of the total weight of the mixture, since this percentage presented the highest unconfined compressive strength and the value of the coefficient of permeability decreased with respect to that of the natural soil.

The work carried out was to implement the methodology called “Value Engineering” to objectively evaluate a set of three alternatives or solutions that can be considered for the construction of interior walls in buildings, from the point of view of their materials and construction procedures, such as be: plasterboard, rustic brick and concrete block, this specifically for the construction of civil works intended for the use of single-family homes in the municipality of the Central District (M.D.C), department of Francisco Morazán. The work was developed through a mixed methodology of research, evaluation, comparison, analysis, and preparation of a technical profile for the three construction processes considered, and corrective measures were applied to increase their quality and promote a reduction in typical costs. of construction project. During the assessment process, each alternative has been carefully analyzed until the ideal result is obtained to maximize resources and mainly generate a reduction in costs and execution time. To achieve an adequate application of “Value Engineering” in the selection of the type of interior walls, a study has been prepared that incorporates a quantitative evaluation of some variables related to performance, maintenance, quality and reliability, without dismissing a of the most important restrictions of any project, which essentially consists of customer satisfaction, which together represent the basis of knowledge to provide a duly founded technical recommendation.