Antonia Pacios

• Universidad Politécnica de Madrid

The cement industry's commitment to reducing CO2 emissions has led to exploring alternative processes and supplementary cementitious materials (SCMs). These include alkali-activated binders or geopolymers, promising cement alternatives due to their pozzolanic properties and superior strength and durability, especially at high temperatures. Using ab...

Revisión de residuos industriales utilizados para la captura de CO2 y su utilización en construcción que han sido objeto de estudio dentro del proyecto CSTO2NE. Hacemos un repaso al trabajo realizado y en curso, con énfasis en la carbonatación acelerada con CO2 gaseoso y CO2 supercrítico de cementos base EAF slag (Electric Arc Furnace Slag).

This study addresses a gap in the literature by investigating the role of universities in equipping students in technical fields with competencies essential for transitioning to a circular economy. While previous studies highlight the significance of circular economy competence, they lack specific recommendations for competency assessment methodolo...

Building on the premise that sustainability and the circular economy are increasingly becoming a prospect in urban communities and among youth and thus higher education, this study investigates the novel educational activity recognition system of the EELISA European University, which is designed to encourage students from technical universities in...

This paper aims to explore how digitalization technologies can help to better control and supervise road pavement and refurbishments at airports. In particular, Building Information Modeling, but also the Internet of Things and Distributed Ledger Technologies, have been considered. Particular attention has been devoted to the efficiency and effecti...

The industry has entered on the Fourth Industrial Revolution, the so-called Industry 4.0, with global markets and strong competition, some traditional manufacturing firms are implementing new maintenance innovations and policies, based on digitalisation and data driven approach, but also based on servitisation. The implementation of these new equip...

This paper describes the procedure developed to compare the dynamic behavior of a structure due to an impact load. The comparison procedure is especially useful for controlling the impact level and repeatability during testing, but it can also be used for fine-tuning the process of simplified models or finite element models. Both features provide i...

The study of the behaviour of glass plates under dynamic loads presents difficulties due to the uncertainty of the definition of load level, particularly in the case of human impact. The main differences from other impact tests are the dimensions of the specimens and the support structures for the various configurations, especially when tests are p...

The aim of this paper is to present different implemented innovations in education focused on the specific course “Industrial Constructions” at Escuela Técnica Superior de Ingenieros Industriales (ETSII) Universidad Politécnica de Madrid (UPM), that for more than ten years have been adopted, in order to propose a more adequate framework for learnin...

The use of ternary cements, is one of the strategies investigated to improve sustainability in construction. However, in construction sites, concrete and mortars with ternary cements and high dosages of admixtures show a high variability in rheological properties, especially with temperature changes. Supplementary materials have an effect in the hy...

Glass cannot be handled as a conventional structural material from the point of view of the mechanical strength. Its nature as brittle material, together with the inevitable presence of micro-cracks on its surface and the consequences of eventual failures, demand rigorous methods to achieve a safe design for glass elements, whose stress resistance...

This article contains the previous calculations and preparatory works for the covering of the Arena of Valladolid with a penumatic dome in the shape of a segment of a sphere, made out of polietilene membrane and radial "perlon" ribbons reinforcement. The objective of the dome being the temporary covering (10 days) of the Building Techniques and Ma...

El Código Técnico de la Edificación establece las exigencias básicas que deben cumplir los edificios en relación con los requisitos básicos de seguridad y habitabilidad. El Documento Básico de Seguridad de Utilización y Accesibilidad identifica unas áreas críticas en las que el impacto con elementos frágiles supondría un riesgo para el usuario. Ade...

The Spanish Building Code (CTE) specifies the demands that should comply the buildings in relation to the essential requirements of safety and habitability. The Fundamental Document of Safety in Use (DB-SU) of the CTE identifies some critical areas where the impact with fragile elements would suppose a risk for the user. The DB-SU establishes the i...

This paper presents results from experiments on soft impact testing of glass plates. In the experiments, a 50-kg twin-tire pendulum was used to strike different glass plates at speeds of up to 4.85 m/s. The impact parameters that were defined and measured include the micro-strain in the glass plates, pendulum acceleration, duration of contact, pend...

Some requirements for engineering programmes, such as an ability to use the techniques, skills and modern engineering tools necessary for engineering practice, as well as an understanding of professional and ethical responsibility or an ability to communicate effectively, need new activities designed for measuring students' progress. Negotiations t...

This paper shows the research done at the School of Industrial Engineers (ETSII) of the Technical University of Madrid (UPM), in two consecutive academic courses. In this negotiation game each team isformed by three students playing different roles, with a different degree of complexity. The game is playea three different times changing the conditi...

In a composite material that uses fibers as reinforcement, the breakage of the matrix is produced jointly with the separation of the fiber from the matrix. The mechanical behavior of the interface describes how fibers can work stabilizing the cracking process. The interface is the medium that puts the fiber on load, being the mechanical behavior of...

El prototipo de vivienda del Sistema de Vivienda Provisional de Emergencia utiliza principalmente la madera y sus derivados tanto en los cerramientos y particiones como en el forjado y la cubierta. El empleo de soluciones constructivas ligeras y la falta de datos en España acerca del comportamiento acústico de los mismos plantea la necesidad de rea...

The house prototype of the Provisional Emergency House System uses wood and its derivatives for the facades, floor structure, roofing and partitions. The extensive use of wooden panels for the construction and the lack of data, in Spain , about their acoustic behavior bring up the necessity to make in situ measurements of the acoustic isolation to...

The present paper summarizes the study carried out in order to understand the influence of SRA (shrinkage reducing admixtures) on shrinkage and other mechanical properties of HPC (high performance concrete). A revision of different theoretical models for predicting shrinkage of HPC is made and an alternative prediction method based on ANN (artifici...

The Spanish Building Code (CTE) specifies the demands that should comply the buildings in relation to the essential requirements of safety and habitability. The Fundamental Document of Safety in Use (DB-SU) of the CTE identifies some critical areas where the impact with fragile elements would suppose a risk for the user. The DB-SU establishes the i...

In a composite material that uses fibers as reinforcement, the breakage of the matrix is produced jointly with the separation of the fiber from the matrix. The mechanical behavior of the interface describes how fibers can work stabilizing the cracking process. The interface is the medium that puts the fiber on load, being the mechanical behavior of...

A study on steel fibres pulled out from a cementitious matrix at different slip rates was conducted. A measurement system, which allows one to use two independent methods to evaluate pull-out load, was developed for the Charpy pendulum. Two series of specimens, with 16 and 8 fibres, respectively, were tested. Effects of the rate of slip and of numb...

Fibers with inclination angles of 0°, 14°, 27°, and 37°, respectively, were pulled out from a cementitious matrix. For each inclination angle, two types of specimens with 16 and eight steel fibers, respectively, were tested. Effects of fiber inclination and number of fibers on peak pullout load and corresponding slip were experimentally examined. B...