Miren Etxeberria

Miren Etxeberria
Universitat Politècnica de Catalunya | UPC · Department of Civil and Environmetal Engineering (DECA)

PhD Construction Engineering

About

56
Publications
43,742
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3,975
Citations
Citations since 2016
23 Research Items
3159 Citations
20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600

Publications

Publications (56)
Article
Full-text available
Many (inter)national standards exist to evaluate the resistance of mortar and concrete to carbonation. When a carbonation coefficient is used for performance comparison of mixtures or service life prediction, the applied boundary conditions during curing, preconditioning and carbonation play a crucial role, specifically when using latent hydraulic...
Article
Full-text available
The use of recycled aggregate to reduce the over-exploitation of raw aggregates is necessary. This study analysed and categorised the properties of water-washed, fine and coarse, recycled aggregates following European Normalization (EN) specification. Because of their adequate properties, zero impurities and chemical soluble salts, plain recycled c...
Article
Full-text available
The fabrication of conventional concrete, as well as remains from demolition, has a high environmental impact. This paper assessed the eco-efficiency of concrete made with uncarbonated recycled concrete aggregates (RCA) and fly ash (FA). Two concrete series were produced with an effective water/cement ratio of 0.50 (Series 1) and 0.40 (Series 2). I...
Article
The use of three different waste-based materials, i.e. ceramic recycled aggregate (CRA), mixed recycled aggregate (MRA), and coal bottom ash (CBA), as internal curing water reservoirs was investigated. Their effects as fine aggregates in the mortar phase of a hypothetical concrete with a low water-to-binder ratio were studied. The used binders were...
Article
Full-text available
The construction industry is affected by the constant growth in the populations of urban areas. The demand for cement production has an increasing environmental impact, and there are urgent demands for alternative sustainable solutions. Volcanic ash (VA) is an abundant low-cost material that, because of its chemical composition and amorphous atomic...
Article
Very few studies on recycled aggregate concretes (RC) have been extended to the use of recycled ceramic and mixed aggregates in relation with high strength concretes. In the main they concentrate only on the analysis of the physical and mechanical properties. This study deals with the investigation of the influence that different percentages (up to...
Article
This paper analyses the influence of the fine fraction of two types of construction and demolition waste (CDW1 and CDW2) on the properties of recycled aggregates (RA) and masonry mortars. The CDW1’s main component was ceramic while the CDW2 were concrete. Three different kinds of fine RA were produced from each source of CDW; the first type was pro...
Article
The generation of construction and demolition waste (C&DW) is a noteworthy environmental and economic concern. The development of new applications in which Recycled Mixed Aggregates (RMA) can be used will lead to a reduction of landfills growth. Moreover, the use of seawater shall represent another advance in sustainability due to the consequent re...
Article
Full-text available
The main objective of this experimental work is to analyse the effect of recycled aggregates (RA), on the basis of the study of the various qualities, of the physical, mechanical and durability properties of high performance concrete (HPC). Five types of recycled aggregates: three coarse RA sourced from parent concretes of 100, 60 and 40 MPa, as we...
Article
The day-to-day negative effect of contaminating substances on the NOx removal effectiveness of photocatalytic surfaces and their recovery capacity after undergoing cleansing is of real academic and practical interest. This paper analyzes the NOx removal effectiveness of two different types of photocatalytic concrete surface layers incorporating nan...
Article
Theday-to-day negativeeffect of contaminating substances on theNOx removal effectiveness of photocatalytic surfaces and their recovery capacity after undergoing cleansing is of real academic and practical interest. This paper analyzes the NOx removal effectiveness of two different types of photocatalytic concrete surface layers incorporating nano-T...
Article
Full-text available
A comparative analysis of the structural behaviour of prestressed concrete sleepers made with high performance concrete (HPC) and high performance recycled aggregate concrete (HPRAC) is presented in this study. Two types of HPRAC sleepers were tested, using 50 and 100% of recycled concrete aggregate (RCA) in replacement of coarse natural aggregates...
Article
High-performance concrete (HPC) mixtures were produced using 100% coarse recycled concrete aggregates (RCAs) from three different qualities. The concretes were produced using two binders: portland cement and portland cement with 30% of fly ash. Moreover, the fly ash mixtures underwent two different curing methods: conventional and steam curing. The...
Article
Over the past twenty years the use of Recycled Concrete Aggregate (RCA) has been mostly limited to normal-strength concretes. However, satisfactory properties have been found in previous studies dealing with the use of RCA sourced from medium to high strength concrete in the production of High Performance Concrete (HPC). In this study the effects o...
Article
Recycled aggregates of mixed composition (MRA) may exhibit great variability in their properties, which in turn reduces their applicability. This study intends to extend the use of MRA in a broadened scope of applications by producing recycled aggregate concretes (RAC), which were mixed using two different types of cement, ordinary Portland cement...
Article
Full-text available
This study details two pilot tests carried out within the city of Barcelona, concerning the reuse of CDW in innovative initiatives. The first case study deals with the use of mixed recycled aggregate (MRA) in the production of a pervious concrete to be employed as a draining base for paving. Once the pervious concrete had been characterized within...
Article
The main objective of this research work was to validate the on site real scale production of dyke blocks employing coarse mixed recycled aggregates, steel slag aggregates and seawater. A laboratory experimental phase (Phase 1) was carried out prior to real scale concrete block production within Barcelona’s port (Phase 2). According to the results,...
Article
Full-text available
This paper details the research work carried out on masonry mortars produced employing recycled aggregates in 100% substitution for natural sand aggregates. The main objective of the work being the validation of the resulting recycled aggregate mortar for use as a new construction material in Cuba. The recycled aggregates were acquired from the cru...
Article
This experimental study assesses the bond performance of recycled aggregate concretes (RAC) with embedded uncorroded and corroded steel bars. The RAC were produced using 20%, 50% and 100% of coarse recycled aggregates obtained from the crushing of waste 40 MPa compressive strength concrete. Three degrees of corrosion were reached on the steel bars....
Article
In this research work, High Performance Concrete (HPC) was produced employing 30% of fly ash and 70% of Portland cement as binder materials. Three types of coarse recycled concrete aggregates (RCA) sourced from medium to high strength concretes were employed as 100% replacement of natural aggregates for recycled aggregate concrete (RAC) production....
Conference Paper
Full-text available
The main objective of this experimental work is to analyse the effect of recycled aggregates (RA) from several qualities on the physical, mechanical and durability properties of High Performance Concrete (HPC). Three coarse RA sourced from parent concretes of 100, 60 and 40 MPa, one coarse mixed recycled aggregate and one fine ceramic waste aggrega...
Article
The ceramic industry is well known for producing large amounts of rejected ceramic waste. During the construction and demolition waste crushing process, a large amount of fine recycled aggregates (FRA) are usually produced. However, little research work has been carried out employing those types of aggregates in recycled aggregate concrete (RAC) pr...
Article
In this paper, the effects of high temperature exposure of recycled aggregate concretes in terms of residual strengths, capillary water absorption capacity and pore size distribution are discussed. Two mineral admixtures, fly ash (FA) and ground granulated blast furnace (GGBS) were used in the experiment to partially replace ordinary Portland cemen...
Article
There are various means of obtaining waste for the production of recycled aggregates. In this study the waste material has been obtained from building demolition and also from the ceramic industry (known for the production of large amounts of rejected ceramic wastes). High performance concretes (HPC) was produced using fine ceramic aggregates (FCA)...
Article
Full-text available
This paper deals with the analysis of the generation of Construction and Demolition Waste (CDW) in Havana, Cuba, for the period 1999 to 2010 and its possible use in the manufacturing of recycled aggregates in mortar and concrete production. In order to define the possible applications of the CDW as aggregates in mortar and concrete production the c...
Article
Full-text available
Due to the increase in the demolition of high strength concrete structures and the interest of precast concrete companies in being more competitive, it is necessary to analyse the use of recycled concrete aggregates (RCA) in high performance concrete (HPC). In this study, HPC were produced using 20%, 50% and 100% of RCA on substitution of natural c...
Article
Masonry mortar is one of the most manufactured and used building materials in Havana, Cuba. The lack of natural sand and the great quantity of demolition waste that exists in the city makes one realize the potential benefits of the use of this abundant waste material to create recycled fine aggregates for their use in the production of masonry mort...
Article
It is known that 50% of recycled aggregate is fine aggregate, however its use is still limited. In this research work the use of recycled fine aggregates for Controlled Low Strength Materials (CLSMs) production was analysed. Self-compacting and flowable CLSM material was composed of cement, fine aggregates, water and an air-entrained admixture. Ade...
Conference Paper
Full-text available
In this research work the applicability of low grade recycled coarse aggregates (RA) on nonstructural concrete production was evaluated. Two types of RA were used, produced by recycling plants located in Barcelona. The properties of RA and limestone aggregates were determined. Conventional concrete as well as concretes made with 50% and 100% of RA...
Conference Paper
Full-text available
En La Habana se generan diariamente más de 1000 m 3 de residuos de construcción y demolición (RCD). La mayoría de estos residuos son de composición mixta, pues provienen de derrumbes de edificaciones en mal estado o de demoliciones que no se realizan de forma selectiva. Las canteras de áridos naturales que abastecen a la ciudad se encuentran sobree...
Article
Full-text available
RESUMEN Los estudios de viabilidad realizados recientemente en La Habana, Cuba, muestran elevadas cifras de producción de residuos de construcción y demolición (RCD). Los últi-mos datos conocidos de generación de escombros de hor-migón alcanzan valores cercanos a los 1.800 m 3 /mensual. Esta situación unida al agotamiento de los áridos en las zonas...
Article
Full-text available
This work deals with the study of dredged marine sand (DMS) from the Port of Sant Carles de la Ràpita (Tarragona, Spain) as construction material. The analysis of its influence on paste, mortar and concrete production is described. Two experimental phases were carried out after the chemical and physical characteristics of DMS were determined. First...
Article
The recent viability studies carried out in Havana, Cuba, according to natural or recycled aggregates, exhibited high volume production of construction and demolition waste (CDW). The last well-known data of concrete waste generation reached to 1800 m3/month. This situation, together with the depletion of the quarry aggregates closed to the capital...
Article
Full-text available
Havana produces over 1000 m3 of construction and demolition waste (CDW) per day. Most of these residues are of a mixed composition; they come either from collapsing buildings in disrepair or demolition that are not performed selectively. From the CDW, there are usually two ways to produce recycled aggregates; one is by sifting the debris through a...
Article
Full-text available
This work deals with the use of dredged marine sand (DMS) in pastes and mortars as construction material. Different materials from two Spanish ports were used: DMS-0 from Sant Carles de la Rapita and DMS-A, DMS-B and DMS-C from Barcelona. The aim of the study was to assess DMS as addition (its influence on cohesion and fluidity) or as a fine granul...
Article
Full-text available
The research work presented in this paper describes the physical, mechanical and durability properties of concrete made with 25% and 100% of recycled coarse aggregates using active and inert additions. The experimental phase was carried by two stages: in stage 1, physical- mechanical properties (compressive strength and ultrasonic pulse velocity) w...
Article
The research work presented in this paper describes the physical, mechanical and durability properties of concrete made with 25% and 100% of recycled coarse aggregates using active and inert additions. The experimental phase was carried by two stages: in stage 1, physical- mechanical properties (compressive strength and ultrasonic pulse velocity) w...
Conference Paper
Full-text available
This paper written by some of the world's leading exponents on the use of recycled and secondary aggregates provides a brief overview of the use of recycled and secondary aggregates for new concrete construction. It is based on a substantial review, dissection and repackaging of the current known knowledge in the field and is based on authors' own...
Article
This paper presents the results of a study of the long term mechanical properties and pore structures of recycled aggregate concrete. In this study, two different sources of recycled aggregates were used to replace natural aggregate at a level of 100%. The compressive and splitting tensile strength of the concrete were tested, and the pore structur...
Article
Full-text available
This paper written by some of the World’s leading exponents on the use of recycled and secondary aggregates provides a brief overview of the use of recycled and secondary aggregates for new concrete construction. It is based on a substantial review, dissection and repackaging of the current known knowledge in the field and is based on authors’ own...
Article
The use of industrial by-products and waste materials in concrete opens a whole new range of possibilities in the reuse of materials in the building industry. In this research study, concretes were made with chemical foundry sand (QFS) and green foundry sand (GFS) as substitution for raw sand. Also Electric arc furnace slag (EAFS) and blast furnace...
Article
This research work describes three experimental sections of a harbor pavement made with three different concretes. The influence of dredged marine sand (DMS) from Port of Sant Carles de la Ràpita (Tarragona, Spain) as a fine aggregate on the production of concretes was analyzed, and its properties were determined. The three concretes were produced...
Article
Full-text available
La durabilidad del hormigón fabricado con árido reciclado es necesario determinarla antes de su utilización como material de construcción. En este artículo se analiza la reacción álcali-sílice manifestada en el hormigón fabricado con árido reciclado procedente de hormigón (compuesto de árido original calizo y mortero adherido de arena sílice reacti...
Article
Full-text available
The durability of recycled concrete must be determined before this material can be used in construction. In this paper the alkali-silica reaction in recycled concrete is analyzed. The recycled concrete is made with recycled aggregates, composed by original limestone aggregates and adhered mortar with reactive silica sand, and high alkali content ce...
Article
Low grade recycled aggregates obtained from a construction waste sorting facility were tested to assess the feasibility of using these in the production of concrete blocks. The characteristics of the sorted construction waste are significantly different from that of crushed concrete rubbles that are mostly derived from demolition waste streams. Thi...
Article
Full-text available
In this study recycled coarse aggregates obtained by crushed concrete were used for concrete production. Four different recycled aggregate concretes were produced; made with 0%, 25%, 50% and 100% of recycled coarse aggregates, respectively. The mix proportions of the four concretes were designed in order to achieve the same compressive strengths. R...
Article
Full-text available
The use of recycled aggregates in concrete opens a whole new range of possibilities in the reuse of materials in the building industry. The utilisation of recycled aggregates is a good solution to the problem of an excess of waste material, provided that the desired final product quality is reached. The studies on the use of recycled aggregates hav...
Article
Full-text available
Research carried out in Tokyo Institute of Technology. The objective is to determine the influence of Interfacial Transition Zone (ITZ) around Lightweight aggregate in concrete on Chloride ion diffusivity. The ITZ of conventional concretes is the weakest point of concrete. The accumulating water on ITZ zone forms the most permeable area inside the...
Article
Full-text available
Fifty percent of the total weight of construction and demolition waste is concrete. Consequently, the utilisation of crushed waste concrete must be considered as imperative in concrete production. Recycled aggregates are formed basically by adhered mortar and original aggregates. Adhered mortar is a very porous material, with a high absorption capa...

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Projects

Projects (5)
Project
Improve mechanical and durability properties of concretes containing Recycled Aggregates by enhancing the physical properties (water absorption reduction) of low-quality RA by means of surface pre-treatments.
Project
To Design and produce High Performance Sustainable Self Compacting Concrete using Recycled Aggregate and low carbon materials added in dosages that allow the development of mechanism based on internal curing in order to improve the strength and durability.