The traditional evaluation approach (based on practices and exams) domains at engineering courses. In 2020 and 2021, the COVID-19 pandemic forced the adaptation of teaching materials and methodology of these courses; however, the form of evaluation remained practically the same. In the Mechanics for Engineers (MI) course, the course evaluation was online but consisted of four (4) qualified practices and two (2) common (synchronous) exams. In 2022, within the framework of an educational innovation project, it was decided to implement an evaluation for learning strategy in this course. It was defined that formative evaluation would have 50% of the total course grade and that summative evaluation (that is, the exams) would have the remaining 50%. Also, it was determined that formative activities would repeat on a weekly basis. This article presents the design of the evaluation strategy, the...

In recent years, graphene oxide has become one of the most innovative and promising nanomaterials for civil engineering studies. Despite its potential benefits, the effects of graphene oxide on concrete properties have not been extensively studied. In the research, an experimental study was carried out to evaluate the impact of different doses of graphene oxide (0.08%, 0.10%, and 0.12% by weight of cement) on the compressive strength of concrete and the properties of fresh concrete (Temperature, Settlement, Unit Weight, Air Content). The evaluation was carried out both after 7 and 28 days of concrete curing. The results obtained in the research indicate that, of the doses tested, the mixture containing 0.08% graphene oxide is the most effective in improving the compressive strength of concrete after 7 days, while at 28 days the dose of 0.10% GO is the most appropriate since it achieved a...

The main objective of the article is to assess the influence of using recycled aggregates on the compressive strength of concrete (f'c = 175 kg/cm2) at the age of 7 and 28 days. Specifically, the study focuses on the partial replacement of natural coarse and fine aggregates with recycled counterparts. To achieve this, recycled concrete from the demolition of columns in Villa el Salvador, Lima—Peru, was utilized as a substitute for the natural coarse aggregate. Additionally, ground glass sourced from glass shops in the Center of Lima was employed as a substitute for the natural fine aggregate. Three mixtures were designed following the ACI method: CC, representing conventional concrete; D1, denoting concrete with a 30% substitution (20% recycled concrete and 10% ground glass); and D2, indicating concrete with a 50% substitution (30% recycled concrete and 20% ground glass). Subsequen...