Conference Agenda

This research was to analyze and compare the characteristics of pervious concrete with a design compressive strength of 260 kg/cm2 with a total of 10 different mixtures such as: 8 concrete mixtures (4 compacted and 4 uncompacted, with coarse aggregate (3/8”, 1/2” and 3/4”) excluding fine aggregate); and 2 mixtures (1 compacted and 1 uncompacted, with 3/4” coarse aggregate and 10% fine aggregate), producing a total of 32 permeable concrete specimens. In addition, 3 standard specimens of conventional concrete with 1/2” aggregate measuring 15cm x 30cm were produced, with the same design strength. Subsequently, after 28 days of age, permeability and indirect tensile strength tests were performed on the 35 specimens. The results showed significant variations in terms of permeability and tensile strength in the compacted and uncompacted specimens. In conclusion, this study provides a series of alternatives for the design of permeable concrete which can be used according to the specific requirements of each project. However, the analysis with respect to conventional concrete reveals that the most suitable permeable concrete to meet the structural requirements would be non-compacted concrete with 1/2” coarse aggregate and 3/8” without fine aggregate, which in turn ensure an adequate permeability coefficient.

This research arose from the problem and deficiency in the evaluation of artisanal bricks in order to determine compressive strength and uniformity in the manufacture of artisanal bricks, taking the Chulucanas brick factory as a reference as the supplier of the samples.
For this purpose, laboratory tests were carried out on 5 specimens of artisanal bricks for testing in a uniaxial press with the capping included to ensure the uniform distribution of loads and to be able to calculate the compressive strength. This research has quantitative, non-experimental criteria for the evaluation of these results, where it was found that none of the samples obtained met the minimum ranges of dimensions corresponding to 8%, 6% and 4% for length, width and height respectively.
In the compression resistance tests it was observed that the minimum requirements were met in 4 of the samples for type 1 brick but the remaining one failed having a resistance of 47.89 kg/cm2 without meeting the minimum standard of 50 kg/cm2. From this it is concluded that the artisanal brick factories still do not have control over the production process for the uniformity of the materials, which affects the performance of the same having a very high standard deviation of the results.

Unpaved roads with clayey soil when subjected to vehicular loads are the most likely to have problems of resistance and durability, in addition, their high content of fines will cause the emission of dust, contaminating society and the environment. The project aims to analyze the results between the stabilizers of hydrated lime (HL) and rice husk ash (RHA) through geotechnical tests carried out in the laboratory. In this research, to know their physical-mechanical properties, the tests of moisture content, granulometric analysis, Atterberg limits, modified proctor, and CBR were carried out on the soil sample by adding 8% and 12% of hydrated lime and rice husk ash. The results adding RHA, did not present LL and LP, a maximum dry density (DMS) of 1.58 g / cm3 with an optimal moisture content (CHO) of 19.30% and a CBR of 18.41%, on the other hand, with HL had a LL of 32%, LP of 29% with a IP of 3%, a maximum dry density (DMS) of 1.64 g / cm3 and an optimal moisture content (CHO) of 20.70% and a CBR of 35.07%. It is concluded that there were improvements with the percentages of addition concerning the sample in its natural state without additions, but the most effective in improving the physical properties of the soil was rice husk ash (RHA) and in the mechanical properties of the soil was hydrated lime (HL) both with an addition of 12%.

This literature review aims to determine the influence of the characteristics of fibers added to concrete mixtures designed to withstand high temperatures. Information was gathered from 20 articles published in English between 2018 and 2025 in the Scopus and ScienceDirect databases, following the PRISMA methodology. The main fiber characteristics considered were material, length, diameter, and the amount of fiber added. It was found that the most commonly used standards for evaluating workability are ASTM and BS-EN. Additionally, it was determined that longer fibers with smaller diameters contribute to a decrease in workability. Finally, it was verified that higher percentages of fiber in the concrete mix have a detrimental effect on its workability.

The objective of this review is to thoroughly examine the characteristics of research related to BIM (Building Information Modeling) in the Americas over the past five years. Two classifications were used for this purpose: the first divided the articles into theoretical and application-based studies, while the second classification considered 12 categories. These categories were established based on the clustering of the main topics and trends identified, using a clustering analysis. The search and selection of articles were conducted using the SCOPUS database and the PRISMA methodology. The findings revealed that the most researched topics in the Americas related to the BIM methodology are “data integration” studies, which aim to incorporate complementary information into BIM, such as climate data, virtual reality, and others, and “specific projects,” which focus on the specific applications of BIM in case studies. These categories represent 23.88% and 16.42% of the total, respectively. In third place, the category “people” was identified, which includes research evaluating the human factor, accounting for 13.43% of the total.

The objective of the research project was to test the resistance of concrete f'c= 210 kg/cm2 with coconut shell replacing 0.50%, 1.00% and 1.50% of coarse aggregate, whose quantitative - experimental method consists of making graphs and tables allowing To carry out data collection as a tool, the security protocols given by the Concrete Laboratory of the Universidad Privada del Norte Headquarters – Cajamarca were used, for the analysis and data procedure a mixture design was developed. The results are based on the ASTM C33 and ASTM C31 standards, Standard E060 - Reinforced Concrete and the Peruvian Technical Standard NTP 339.034 - 2015, which indicates in its article the number of specimens to be made, said resolution was made 16 specimens per standard concrete, coconut shell 0.50%, coconut shell 1.00% and coconut shell 1.50% having a total of 64 specimens and measuring their curing time of 7 days, 14 days, 21 and 28 days and verifying which is the best percentage of substitution of the coarse aggregate in the compression resistance, they can achieve a better compression performance through of compressive strength and verify that an organic material does work in particular.

Peru, exposed to recurrent earthquakes, faces challenges in the structural safety of its buildings due to the aftershocks that follow the main seismic events. In this article, the effect of earthquake sequences on a typical reinforced concrete porticoed building of educational infrastructure in Peru was studied with the objective of estimating the variation in the expected probability of damage. The methodology followed has consisted of the estimation of fragility curves by means of incremental dynamic analysis (IDA) under a series of seven single earthquakes and the effect of seven subsequent earthquakes. To simulate the behavior under the sequence of earthquakes, four incremental initial damage conditions have been established: fully operational (ND), immediate occupancy (IO), life safety (LS) and prevention of collapse (CP); based on the safety limit states of the building estimated by pushover analysis. The demand parameter used was the maximum interstory drift (MID) and the intensity parameter, the maximum ground acceleration (PGA). The obtained fragility curves have been compared to estimate the effects that subsequent earthquakes have on the probability of damage. The results conclude that the sequence of earthquakes increases the probability of expected damage compared to a single earthquake, from 5% to 35% and from 17% to 59% in the X-X and Y-Y directions respectively. This research demonstrates the importance of considering successive earthquakes in seismic analyses and provides a basis for discussion for Peruvian earthquake-resistant regulations.