Antonio José Tenza-Abril

Antonio José Tenza-Abril
University of Alicante | UA · Civil Enginering

PhD, Civil Engineering

About

84
Publications
17,941
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Introduction
Currently working at the University of Alicante (Spain) and researching at Department of Civil Engineering. His research experience involves a wide range of construction materials including concrete, bituminous mixes, lightweight aggregates, recycling of waste in construction materials, optimization of ligthweight aggregate concrete properties, non destructive techniques applied to construction materials. He is also working on the study of beach erosion, water scarcity and modelling techniques.
Additional affiliations
July 2008 - May 2017
University of Alicante
Position
  • Professor (Assistant)
June 2008 - present
University of Alicante
Position
  • Professor (Assistant)

Publications

Publications (84)
Article
Full-text available
RESUMEN Los residuos sólidos han sido un inevitable producto de las operaciones del crecimiento económico, industrial y de la sociedad; los cuales con un debido procesamiento pueden ayudar a minimizar la explotación de recursos naturales. Los áridos reciclados tipo hormigón (ARH) procedentes de los Residuos de Construcción y Demolición (RCD) difier...
Article
The performances of expanded clay aggregate and wood ash as internal curing water reservoirs were studied in the mortar phase of a hypothetical high performance concrete with a low water-to-binder ratio. The two materials substituted the 15 and 30% of the sand volume. Two different binders, Portland cement and high-volume fly ash blended cement, we...
Article
Aggregate segregation in concretes, especially in lightweight aggregate concretes (LWAC), is a pathology that can seriously impact on different material properties, both in terms of mechanical strength and durability. Some studies have already analysed the impact of this phenomenon in the compressive strength of LWAC , almost always adopting segreg...
Article
Full-text available
Lightweight aggregate concrete (LWC) is an attractive alternative to conventional concrete in building construction. It leads to lighter self-weight in beams and floor slabs and thus might have a positive impact on reinforcing steel consumption, also reducing the loads withstood by columns and foundations. However, LWC may increase cement consumpti...
Article
Full-text available
Due to the low density of the aggregates and the longer mixing times, lightweight aggregate concrete (LWAC) is susceptible to segregation of the aggregates. Several studies have proposed different methods to estimate the segregation of concrete because segregation affects strength and durability in structures. Image analysis techniques have become...
Article
Full-text available
One of the main problems faced in coastal management is the loss or destruction of beaches due to erosion. A considerable diversity of factors is involved in coastal erosion, which makes it a complex system to study. The quality of the material that constitutes the beach, as well as the choice of appropriate materials for its nourishment are two of...
Article
Full-text available
Lightweight aggregate concretes (LWAC) are versatile and interesting materials for projects that require greater structural efficiency. Due to the difference that exists between the densities of the materials used in these types of concrete, during transport and mainly compaction, their aggregates tend to separate from the mortar matrix, floating t...
Article
This paper focuses on the microstructural characterisation of pastes produced with thermoactivated recycled cement (RC). To this end, a comprehensive experimental program combining thermogravimetry (TG), X-ray diffraction (XRD), isothermal calorimetry, scanning electron microscopy (SEM), quantitative backscattering electron (BSE) imaging, mercury i...
Article
Full-text available
One of the most aggressive attacks to which cement-based materials can be exposed is that produced by sulphate. During this attack, expansive products are formed, causing volumetric strains in hardened materials, which brings microcracking and the reduction of their strength and durability. The use of non-destructive techniques for characterizing t...
Preprint
Full-text available
In Cuba, tons of construction and demolition waste (CDW) are generated during urban construction and reconstruction activities every year. The use of CDW, such as recycled concrete aggregates (RCA) and reclaimed asphalt pavement (RAP), in pavement construction is a viable solution to preserve the consumption of natural aggregates (NA), and to minim...
Chapter
Full-text available
Many factors can influence the shoreline retreat, such as: the maritime climate, anthropogenic actions like the construction of ports, dams, etc. To overcome this problem, it is necessary to understand the influence of each of the factors involved in beach erosion. This work tackles the problem of shoreline erosion from the study of the beach mater...
Article
Full-text available
Sustainability requirements are gaining importance in the construction industry, which needs to take specific measures in the design and construction of concrete structures. The use of recycled aggregates in concrete may be of special interest. Recycling a construction waste will close the life cycle of the original materials (e.g., concrete). Thus...
Article
Lightweight aggregate concrete (LWAC) compaction is a critical stage during concrete production and remains one of the major problems because excessive vibration time can easily produce the segregation phenomenon. LWAC is susceptible to segregation because of the differences between the densities of lightweight aggregates and mortar, influencing th...
Chapter
Full-text available
The 8th International Symposium "Monitoring of Mediterranean Coastal Areas. Problems and Measurements Techniques" was organized by CNR-IBE in collaboration with FCS Foundation, and Natural History Museum of the Mediterranean and under the patronage of University of Florence, Accademia dei Geogofili, Tuscany Region and Livorno Province. It is the oc...
Article
Full-text available
The main objective of this work is to evaluate the properties of hot asphalt mixtures that have been manufactured with different recycled concrete aggregate (RCA) percentages (0%, 20%, 40%, 60% and 80% of the fraction 5–13 mm) and asphalt (4%, 4.5% and 5%). Dense asphalt mixtures were made; partially replacing the natural aggregate (NA) fraction be...
Article
Full-text available
Acid attack causes the deterioration of construction material surfaces. The objective of this study was to investigate the degradation of different types of cement mortar in terms of variations in pore size distribution obtained by mercury intrusion porosimetry (MIP), mass loss, and compressive strength. The mortars were manufactured with nanosilic...
Article
In the heritage protection, one of the most interesting scenarios is the preservation of the original materials. In this case, the surfaces are generally treated to consolidate them. The aim of this paper is to evaluate the effect of ethyl silicate coatings on surface consolidation, water absorption and porosity of earthen materials. Peeling tests,...
Article
Full-text available
This work presents five different methods for quantifying the segregation phenomenon in lightweight aggregate concretes (LWAC). The use of LWACs allows greater design flexibility and substantial cost savings, and has a positive impact on the energy consumption of a building. However, these materials are susceptible to aggregate segregation, which c...
Chapter
Full-text available
A lo largo de la vida de las asignaturas de Ingeniería Portuaria y Costera y de Ingeniería Marítima se han implantado diferentes metodologías docentes. El objetivo de este trabajo es determinar el mejor sistema de evaluación para mejorar el rendimiento del alumnado. Los resultados muestran que la metodología empleada por el profesorado tiene un cie...
Article
Calcium hydroxide nanoparticles (nanolime) are a novel solution for consolidating clay-based plasters and adobes in cultural heritage constructions. The suspension is applied as a coating and fully compatible with calcareous earthen materials. Ca(OH)2 nanoparticles (NPs) are transformed into protective CaCO3 coatings due to a carbonation reaction....
Article
Lightweight aggregates used in lightweight aggregate concrete (LWAC) exert an important influence on the compressive strength and elastic modulus of concrete. A good homogeneity of the material is essential in this type of concrete once a non-uniform distribution of aggregates in the mixture may strongly affect the concrete global properties, which...
Article
Full-text available
Recently, there has been a great effort to incorporate industrial waste into cement-based materials to reach a more sustainable cement industry. In this regard, the Bayer process of obtaining alumina from bauxite generates huge amounts of waste called red mud. Few research articles have pointed out the possibility that red mud has pozzolanic activi...
Article
Coatings are often used to reinforce the surface of monuments, although little is known about their surface dispersion and effectiveness. This paper examines the surface distribution of Ca(OH) 2 nanoparticle-based coatings (Ca(OH) 2 -NP). The coatings were sprayed on different substrates and studied by image analysis software and microscopy. Using...
Article
Full-text available
Featured Application: The results of the study show that wastes from the La Union mining district in Spain have adequate properties to serve as coarse aggregates for use in the fabrication of AC16S wearing courses and may be considered as an alternate source given the scarcity of high-quality aggregates in this region in Spain. Abstract: Currently,...
Article
Full-text available
Using durable materials is a sustainable solution for extending the lifetime of constructions. The use of crystalline admixtures makes cementitious materials more durable. They plug pores, capillary tracts and microcracks, blocking the entrance of water due to the formation of crystals that prevent the penetration of liquids. The literature has cov...
Article
The construction of harbours on the coast and/or dams in river courses prevents the contribution of sediments from rivers and ravines to the coastline and interferes with natural coastal dynamics. In the present study, the main objective is to provide information to the coastal engineer to predict and quantify the wear and tear of sand for artifici...
Article
Full-text available
In view of the global sustainable development, it is imperative that supplementary cementing materials (SCM) be used for replacing cement in the concrete industry and several researchers have shown that mineral admixtures can enhance the workability of lightweight aggregate concrete (LWAC) mixture and its strength. In view of the beneficial effects...
Conference Paper
Full-text available
In this work, four different segregation indexes were applied to evaluate the segregation phenomenon in lightweight aggregate concretes (LWAC). LWAC permits greater design flexibilities, positively impact the energy consumption of the buildings and may mean a substantial cost saving. However, LWACs are susceptible to present aggregate segregation d...
Conference Paper
The demand for durable cementitious materials for applications where they are subjected to aggressive chemical environments is growing. As an example, some infrastructures can be affected by acid attacks, such as sanitation networks, foundations, infrastructures in contact with groundwater or in agricultural and farm facilities. Acid attacks are on...
Conference Paper
Full-text available
Lightweight aggregate concrete (LWAC) is susceptible to segregation because of the differences between the densities of lightweight aggregates and mortar, influencing the strength and durability of concrete. Besides that, due to high workability and low viscosity, LWAC is susceptive to segregation during mixing process, transporting, placement and...
Conference Paper
Full-text available
In industrial cities, a common attack in concrete is sulfuric acid attack. Sulfuric acid is particularly corrosive due to the sulfate ion in addition to the dissolution caused by the hydrogen ion causing the deterioration of the cementitious materials. To improve acid attack resistance in those materials, the matrix must be dense, with low permeabi...
Article
Full-text available
Obtaining durable materials that lengthen the service life of constructions and thereby contribute to sustainability requires research into products that improve the durability of cementitious materials under aggressive conditions. This paper studies the effects of sulfuric acid exposure on four mortar types (control mortar, mortar with nanosilica,...
Article
Due to the low density of the aggregates used, lightweight aggregate concrete (LWAC) is susceptible to segregation because of the differences between the densities of their components. The segregation in LWAC causes a great variability in the concrete properties causing negative effects in its mechanical properties and durability. Ultrasonic veloci...
Article
Maltese agriculture faces great challenges due to the severe scarcity of water. Sufficient water resources, in quantity and quality, are necessary to cover the demand in the production of wine grape, one of the most important crops in Maltese agriculture. But also, economic efficiency is essential in the grape cultivation. A Cost-Benefit Analysis (...
Conference Paper
Ca(OH)2 nanoparticles (NPs) can be used as coatings to consolidate porous surfaces in monuments [1-2]. An important advantage of Ca(OH)2 NPs is that they are transformed into compatible CaCO3 coatings on the surface of calcareous heritage materials. This paper assesses the surface-dispersion of Ca(OH)2 NPs coatings using microscopy and image analys...
Conference Paper
This paper aims to study the effect of Ca(OH)2 nanoparticles coatings in protecting heritage materials against rain water and acid rain. Ca(OH)2 NPs are a novel solution for consolidating clay-based plasters or adobes in heritage buildings. Ca(OH)2 NPs are transformed into CaCO3 coatings, which are compatible with calcareous earthen materials. Howe...
Article
Full-text available
Recycled Aggregates (RA) from construction and demolition waste (CDW) are a technically viable alternative to manufacture of asphalt concrete (AC). The main objective of this work is to evaluate the properties of hot asphalt mixtures that have been manufactured with different sources of CDW (material from concrete test specimens, material from the...
Article
The use of lightweight aggregates (LWA) in concrete is an interesting alternative to simultaneously reduce the total structure weight and provide both appropriate resistance and concrete's performance. This paper studies the influence of LWA on concrete, comparing the changes in the mechanical properties, pore structure and fluid transport related...
Article
Sand is the third most consumed material in the world, although it is a very scarce material. An exhaustive knowledge of sand and its behaviour against the waves is important for selecting the most suitable material to avoid shoreline erosion. To this end, a pattern of behaviour against accelerated wear test has been sought for 26 sand samples with...
Article
Storms can alter the beach shape, relocating large volumes of sediments and generating drastic changes in the coastline. In the last 60years, beaches shoreline behaviour has been different even though the energy of the waves was similar. Therefore, it is necessary to understand the factors that affect the sandy coasts for better future management....
Conference Paper
Full-text available
Land cover change (LCC) is a complex process continuously affected by severe alterations that can produce numerous consequences for terrestrial and aquatic environments. Climate and several human activities are capable of increasing the LCC and, for that reason, the understanding of recent LCC is fundamental for decision makers to identify appropri...
Conference Paper
Full-text available
Buildings, infrastructures and people settled on the top of urban slopes are vulnerable to damage caused by slope instabilities. Therefore, the assessment of landslide-induced damage is necessary to understand the level of risk exposure and the nature of the potential vulnerability to this natural hazard. Additionally, the study of the infras-truct...
Article
Abstract Water absorption in aggregates has important effects on the properties of concretes especially in lightweight aggregate concretes (LWAC). It is assumed that during the production of LWAC the lightweight aggregate (LWA) absorption is equivalent to a certain percentage of the absorption determined in an aqueous medium. A new procedure for de...
Article
Actions taken to prevent or reduce coastal erosion often do not have the desired effect, leading to major problems instead of solving the original one. This research focuses on why a nourished beach- with borrowed sand and 0.05% of particles <0.063 mm- causes the presence of suspended particles that are observed by beach users as turbidity. This me...
Article
Full-text available
It is estimated that currently the consumption of natural aggregates used annually in the production of concrete in the world is around 10 billion tons. Moreover, more than 10 million tons of waste is generated annually from the construction industry. The incorporation of recycled aggregates in the production of concrete arises mainly due to an env...
Article
This paper analyses the daily precipitation data recorded for the last 75–80 years in SE Spain. Prior to statistical analysis, homogeneity tests were performed to determine the usefulness of the data (recorded in six pluviometric stations). If the data were homogeneous, the Mann–Kendall test was performed to detect monotonic trends for variables su...
Article
Surface water absorption affects the value of the particle density obtained according to the UNE 1097-6. The aqueous medium absorption according to the standard poses problems as much in coarse fraction as in fine fraction. This new methodology is proposed in order to solve the problems observed in the current standard. The method is validated expe...
Article
Full-text available
Landslides are very complex processes controlled by multiple factors. The knowledge and characterization of these factors is essential for a comprehensive understanding of the mechanisms and kinematics of the instabilities and for an efficient design of corrective measures. The aim of this work is to combine traditional geological and geotechnical...
Article
Full-text available
The use of lightweight concrete allows great flexibility and cost savings when it is used in building construction having a positive impact on the energy consumption of buildings due to its good thermal characteristics. However, it is also known that the differences between the densities of the materials used to produce these concretes make it high...
Article
Full-text available
In this work, numerical models were obtained for describing the segregation phenomenon in lightweight aggregate concrete (LWC). To that end, a numerical methodology based on the generation of geometric models of finite elements has been applied, selecting those that describe better this phenomenon. The use of lightweight aggregate concretes (LWC) a...
Conference Paper
It is estimated that currently the consumption of natural aggregates used annually in the production of concrete in the world is around 10 billion tons. Moreover, more than 10 million tons of waste is generated annually from the construction industry. The incorporation of recycled aggregates in the production of concrete arises mainly due to an env...
Chapter
Full-text available
Tras la reacreditación del Máster Universitario en Ingeniería Geológica, los evaluadores propusieron una serie de medidas para mejorar el ingreso de estudiantes. Entre ellas destacan la eliminación de uno de los itinerarios de especialización actuales y la publicitación del máster en otras universidades. Como alternativa, se plantea un nuevo itiner...
Conference Paper
Full-text available
Los hormigones ligeros (HL) permiten mayor flexibilidad en el diseño de estructuras y un ahorro de costes, sin embargo, son susceptibles a la segregación por las diferentes densidades de sus componentes. En este estudio se evaluó la segregación de un HL, provocando su segregación mediante diferentes tiempos de vibrado. Para cuantificar el fenómeno,...
Conference Paper
The absorption of lightweight aggregates is probably one of the most important properties, especially in those of high porosity. High water absorption influences docility and the main properties of hardened concrete, and is one of the main difficulties to design the dosage of lightweight concrete. The estimation of water absorbed by lightweight agg...
Article
Full-text available
Everyone is aware of the special relationship that man has with the coast; from the beginning of mankind, humans have been attracted to the littoral zone for the construction of settlements and the use of its resources. Subsequently, humans have evolved, leaving an increasingly large footprint on this medium. Hence, there is a need to deepen our kn...
Article
Full-text available
Our research is focused on the city of Alicante (Spain). In concrete, the sunken area studied is placed at the south of Alicante Port, being the point of entry from the airport to the city. There are two important reasons that have generated that depressed area. Firstly, the development of the city has led to a change in the use of the soil, and se...
Conference Paper
Full-text available
One of the main problems of coastlines around the world is their erosion. There are many studies that have tried to link coastal erosion with different parameters such as: maritime climate, sediment transport , sea level rise etc. However, it is unclear to what extent these factors influence coastal erosion. For example, the Intergovernmental Panel...