Conference Agenda

The main objective of this research is to determine the influence of carrot fiber (CF) on the physical and mechanical properties of structural concrete with a compressive strength of F'c=210 kg/cm², assessing its viability as an eco-friendly material for the construction sector. Tests were conducted in accordance with national and international standards on 60 cylindrical specimens measuring 15 x 30 cm (NTP 339.034), 60 specimens for tensile strength (NTP 339.059), and 30 prismatic beams measuring 15 x 15 x 45 cm (NTP 339.084), incorporating various percentages of carrot fiber (0.00%, 0.45%, 0.50%, 0.55%, and 0.60%), subjected to curing periods of 7, 14, 28, and 56 days. Additionally, two pilot structures measuring 0.50 m x 0.50 m x 0.50 m were designed using standard concrete and concrete modified with 0.50% CF. These structures underwent diamantina tests to extract core samples and measure in-situ strength according to NTP 339.181 and ASTM C805.

The results showed that the incorporation of carrot fiber significantly improved the physical and mechanical properties of concrete, with increases of 6.43% in compressive strength, 7.80% in tensile strength, and 7.86% in flexural strength compared to the standard mix. Furthermore, In the case of the resistance of the witnesses of the in situ tests, an increase of 4.07% is observed, the modified concrete maintained adequate workability and durability without compromising structural cohesion.

This research concludes that carrot fiber is a viable additive that improves the performance of structural concrete, promoting environmentally responsible practices in construction.

The problem of imprecise material takeoff for construction projects in multi-family buildings in Metropolitan Lima emerges from the complex intersection between limited traditional methods and emerging technologies like Building Information Modeling (BIM), where manual quantification approaches are inherently prone to errors and time-consuming, negatively impacting project efficiency, while BIM, despite significantly improving accuracy and speed in quantity calculations, faces critical challenges such as lack of model coherence, insufficient information, and difficulties in verifying quality standards. Aware of these deficiencies, the research developed an innovative solution integrating Python codes with Dynamo's visual programming in BIM models, seeking to automate and optimize takeoff processes in structural and architectural disciplines. The methodology implemented in a pilot project, initially using traditional takeoff methods, demonstrated promising results by significantly increasing calculation precision, reducing manual errors, and automating processes, constituting a fundamental technological advancement for improving construction project management in complex urban environments like Metropolitan Lima, where precision and efficiency in material quantification become increasingly critical for the success of multi-family building projects.

This research aims to design a rigid pavement with increased strength in order to reduce pavement thickness, so that material costs can be reduced, with more resistant pavements the traffic service is improved in the province of Oyón in Peru, by designing a new hydraulic concrete pavement with a metallic additive (steel fibers) to address cracking problems and increase the life of the current pavement. This experimental study will compare the performance of the existing pavement with the proposed design by adding steel fibers with percentages of 1%, 2%, 3% and 4%. As a result, a better performance was obtained with 3% of steel fibers in the mix having a strength of 397 kg/cm2 while the original design only has a strength of 268 kg/cm² which led to a 25% (20 cm to 15 cm) reduction of its thickness from the original pavement.

The characterization of fresh concrete is a crucial area in the construction industry, since its properties directly influence the quality and durability of structures. This study aimed to evaluate the impact of workability and consistency properties on the behavior of fresh concrete, with a focus on the cementitious materials used in its mixture. A non-experimental design and mixed approach was used, carrying out a systematic review without meta-analysis of studies extracted from academic databases such as Scopus. The review included investigations into the influence of variables such as the water-cement ratio, additives, and the presence of recycled materials on the workability and other properties of fresh concrete. The results indicate that consistency and workability are crucial to ensure correct application of concrete and its performance on site, since they affect its ease of mixing, placing and finishing. In addition, it was observed that the use of additives and the optimization of the proportions in the mixture contribute to improving the fluidity and homogeneity of the concrete without compromising its long-term resistance characteristics. It is concluded that adequate management of workability and consistency, together with the appropriate selection of materials, is essential to optimize the behavior of fresh concrete, ensuring its efficiency in construction and increasing the sustainability of infrastructures. Adoption of advanced technical approaches and proper implementation of these practices are essential to improve the overall quality of concrete in various industrial applications.

The present study was born as a solution to improve the quality of a soil with low support capacity using non-traditional stabilizers, determining the influence of the incorporation of recycled oil (AR) and Donax Peruvians (DP) in the subgrade soil on the LI - 794 Usgarat - Mayday road in the province of Otuzco, through an experimental, applicative - explanatory methodology with a quantitative approach; For this, the soil was characterized by classifying it with “CL” and “A – 6” classification, with a plasticity index (PI) of 19.83%, 75.31% capillary absorption capacity (CAP) and 5.50% CBR, while with the optimal dosage it was possible to improve the properties to 17.65% IP, 40.58% CAP and 23.77% CBR, reaching conclude that the optimal dosage that greatly improves the physical and mechanical properties of the soil was 4% AR – 6% DP, which could go from a subgrade with insufficient category to one of very good quality.

This study investigated the level of informal construction and structural risk in the houses of the Buenos Aires sector, Trujillo, in order to analyze solutions to this issue and support sustainable urban development (SDG 9). The research is basic, with a mixed approach and non-experimental design. A sample of 150 inhabitants was calculated, surveying 50 people present during the sampling. The inclusion criteria considered houses near the beach, adults, and individuals who had lived in the area for at least 3 years. The survey was conducted in person and was observational, with data collected using a Google Form. The results show that 66% (n = 33) of the houses do not have safe construction, and 70% of the respondents have an intermediate level of knowledge about permits. Furthermore, 56% and 68% of the houses are at a high level of structural collapse and structural risk due to soil stability. The statistical analysis using Spearman's Rho (r = 0.88) showed a positive relationship between informal construction and structural risk. The research concludes that there is an intermediate level of safe construction and knowledge about permits, indicating poor urban planning.