Jacopo Donnini

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Verified

Jacopo verified their affiliation via an institutional email.

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• MD, PhD
• Professor (Associate) at Marche Polytechnic University

The urgent need to reduce the environmental impact of building materials has led to the recent development of low-clinker binders, such as limestone calcined clay cement (LC3). The possibility of using LC3 to produce cement-based composites with high mechanical properties and reduced environmental impact is certainly of great interest. In this stud...

The combined need to propose new solutions for the structural reinforcement of existing buildings and for the reduction of CO 2 emissions is leading to the development of more sustainable composite materials, such as those based on alkali-activated mortars (AAM). In this study, different formulations of AAM, based on metakaolin or fly ash, have bee...

The increase in concrete structures’ durability is a milestone to improve the sustainability of buildings and infrastructures. In order to ensure a prolonged service life, it is necessary to detect the deterioration of materials by means of monitoring systems aimed at evaluating not only the penetration of aggressive substances into concrete but al...

Nowadays, FRCM systems are increasingly used for the strengthening and retrofitting of existing masonry and reinforced concrete structures. Their effectiveness strongly depends on the bond that develops at the interface between multifilament yarns, which constitute the reinforcing fabric, and the inorganic matrix. It is well known that fabric yarns...

Ultra High Performance Fiber Reinforced Concrete (UHPFRC) is an innovative material with great mechanical and durability performances, high ductility and toughness. Although the mechanical behaviour of UHPFRC has been extensively studied in the last years, the damage mechanisms and permanent strains of this material when subjected to flexural loads...

Polymeric coatings are widely used to enhance the load bearing capacity and chemical durability of alkali-resistant glass (AR-glass) textile in cement-based composites. The contact zone between coated yarns and concrete matrix plays a major role to enable the stress transfer and has still to be improved for the full exploitation of the mechanical b...

The mechanical properties of cement-based composites reinforced with glass textile are strongly affected by the low ability of the inorganic matrix to penetrate within the single filaments, and by the low durability of the fibers in an alkaline environment. Over the last decades, different studies have investigated the possibility to improve the me...

Glass fiber reinforced polymer (GFRP) bars are currently used as internal reinforcement of concrete structures, as an alternative to traditional steel rebars, to avoid corrosion problems and durability issues. GFRP bars are usually made of continuous glass filaments embedded within a polyester (for non-structural applications) or vinyl ester resin....

Ultra‐High Performance Fiber‐Reinforced Concrete (UHPFRC) is considered a promising material for many structural applications where high strength and high energy absorption capacity are required. The purpose of this work is to study the uniaxial tensile behavior of soft cast (flowable at casting time) UHPFRC by varying the amount of hooked steel fi...

The paper presents the results of an experimental campaign aimed at investigating the in-plane and out of-plane behavior of tuff and fired clay brick masonry panels reinforced by a commercial, not yet tested, Textile Reinforced Mortar (TRM) system. The TRM, consisting of hydraulic lime mortar coupled with a bidirectional glass fabric (total thickne...

Ultra-high performance fiber reinforced concrete (UHPFRC) is considered a promising material for many applications where high compressive and tensile strength, small thickness and high energy absorption capacity are required. However, although these materials were introduced in the mid-1990s, a comprehensive investigation regarding its tensile char...

The possibility of producing high-volume fly ash (HVFA) recycled aggregate concrete represents an important step towards the development of sustainable building materials. In fact, there is a growing need to reduce the use of non-renewable natural resources and, at the same time, to valorize industrial by-products, such as fly ash, that would other...

The use of Fabric-Reinforced Cementitious Matrix (FRCM) systems as externally bonded reinforcement for concrete or masonry structures is, nowadays, a common practice in civil engineering. However, FRCM durability against aggressive environmental conditions is still an open issue. In this paper, the mechanical behavior of a glass FRCM system, after...

Already from the beginning, 50 years ago, the first nucleus of researchers establishing the research group, was convinced that the construction sector was the best option for the valorization of industrial by-products as “secondary raw materials”. In fact, this sector is probably the largest consumer of resources and the largest waste generator, co...

Dear Colleagues, We are glad to invite you to submit your manuscript for the Special Issue 'Fiber Reinforced Inorganic-based Composite Systems for Structural Applications' which will be published in Fibers (MDPI-Scopus). The Special Issue is open to both original research articles and review articles, and the deadline for submission is 15 October 2...

The use of Textile Reinforced Mortar (TRM) systems represent a valid alternative to traditional strengthening techniques, to improve mechanical strength and seismic performance of masonry buildings. Their effectiveness has been validated by several studies [1-4]. However, the TRM contribution in the mechanical behavior of masonry walls, subjected t...

Composite systems consisting of fibers in the form of open fabrics embedded within inorganic matrices (Fabric Reinforced Cementitious Matrix, FRCM) have become a well-established technique for strengthening interventions on masonry and concrete structures. In particular, the use of fabrics made of glass fibers coupled with inorganic matrices showed...

The use of Fabric Reinforced Cementitious Matrix (FRCM) systems to reinforce existing masonry and concrete structures is nowadays a well-established practice. The mechanical characterization of FRCM systems is of fundamental importance to define the correct parameters needed to design a strengthening intervention. However, some aspects regarding FR...

The use of new methods to strengthen and rehabilitate existing concrete and masonry structures is one of the challenges that the engineering community is facing in recent years. In this field, composite materials are acquiring more and more success, due to lower invasiveness and ease of application if compared to more traditional systems (e.g. stee...

This work studied the possibility of reusing waste from demolished concrete as aggregate for bedding mortars as well as biomass ash coming from paper mill sludge as partial cement replacement. During incineration of paper mill sludge, paper and organic compounds are burned out, whereas mineral fillers and inorganic salts are trans-formed into the c...

This work aims to investigate about the mechanical behavior of sustainable composite systems made of lime-based matrix reinforced with different kinds of natural hemp fibers. Two different kinds of hemp fibers have been used: short hemp fibers with different lengths and hemp fiber bidirectional fabrics. The same limebased mortar has been used as ma...

This review presents "a state of the art" report on sustainability in construction materials. The authors propose different solutions to make the concrete industry more environmentally friendly in order to reduce greenhouse gases emissions and consumption of non-renewable resources. Part 1-the present paper-focuses on the use of binders alternative...

The paper represents the "state of the art" on sustainability in construction materials. In Part 1 of the paper, issues related to production, microstructures, chemical nature, engineering properties, and durability of mixtures based on binders alternative to Portland cement were presented. This second part of the paper concerns the use of traditio...

The aim of this experimental activity was to study the early-age behavior of several Fiber-Reinforced Concretes (FRCs) containing expansive agent. The investigation concerned the evaluation of the influence of different amounts of fibers (dosages of 2.0%, 1.75% and 1.5% by volume of FRCC) on the mechanical performance of FRCs. In particular, hooked...

This paper is aimed at exploring mechanical, electrical and self-sensing properties of cement-based mortars through the addition of short carbon fibers, at different dosages (2%, 3%, 4% by weight of cement). Compression and bending tests on carbon fiber reinforced mortars (CFRM) were performed. The addition of carbon fibers showed to enhance the mo...

Electromagnetic shielding and propagation in concrete structures are getting more and more interest in radiation hazard problems and wireless communications. The protection of sensitive environment is nowadays carried out by appropriate shielding room made of metallic walls. Their efficacy is counteracted by their heaviness, not adequate for the in...

In the last decades, the need for upgrading, strengthening and retrofitting of existing concrete structures is rapidly growing. Composite materials showed to be an optimal solution to face this problem, combining high efficacy with low invasiveness. The use of Fiber Reinforced Polymers (FRP) to wrap concrete columns has been widely investigated and...

The bond strength at the yarn to matrix interface is one of the key factor affecting the FRCM mechanical behavior. The interaction between multi-filament yarn and cementitious matrix, governed by complex mechanisms, determines the behavior and failure mode of this composite system.

Fiber Reinforced Cementitious Matrix (FRCM) systems have emerged in recent years as an effective tool for strengthening and retrofitting of the existing built heritage. The effectiveness of FRCM systems is strongly related to the bond developed at the interface between inorganic matrix and fabric reinforcement and between the inorganic matrix and t...

This experimental work aims to evaluate the strengthening effectiveness as well as the mechanical behavior of different Fiber Reinforced Cementitious Matrix (FRCM) systems. The use of mortars with different strength classes coupled with fabrics made of carbon, basalt or PBO fibers has been investigated. In the case of both carbon and basalt fibers...

The use of inorganic cement based composite systems, known as Fiber Reinforced Cementitious Matrix (FRCM), is a very promising technique for retrofitting and strengthening the existing masonry or concrete structures. The effectiveness of FRCM systems is strongly related to the interface bond between inorganic matrix and fabric reinforcement, and, s...

h i g h l i g h t s Carbon nanotube reinforced concretes were characterized in microwave bands. Shielding effectiveness was evaluated by reverberation chamber system. Frequency selective absorber made of reinforced concretes was designed. Particle swarm optimization algorithm was used in the absorber design. a b s t r a c t Carbon nanotube reinforc...

The use of externally applied composite systems to upgrade, strengthen or rehabilitate masonry or concrete structures is well established. However, structural strengthening with organic type composites, such as fiber-reinforced polymer (FRP) systems, may be impractical when the element is exposed to high-temperature service conditions, due to signi...

In this work, the influence of different kinds of fibres on Fibre-reinforced concrete (FRC) cracking behaviour is examined. Several FRC mixtures are designed, in which cement is partially replaced at 20% by weight of cement by a biomass ash coming from paper mill sludge incineration. These FRCs are prepared by alternatively using steel fibres, poly...

This work is aimed at studying the possibility of reusing waste glass from crushed containers as aggregate for preparing mortars. At present, this kind of reuse is still not common due to the risk of alkali–silica reaction (ASR) between alkalis of the cement and silica of the waste glass. This expansive reaction can cause great problems of cracking...

The use of composite materials for repair and retrofit of structures has become a common use among the engineering community. Fabric Reinforced Cementitious Matrix (FRCM) is a composite material specifically designed for masonry and concrete rehabilitation and is becoming a viable alternative to FRP, whenever the project conditions do not allow the...

Synopsis: A key concept of sustainability is the preservation of resources, thus adding life to existing concrete structures by means of durable strengthening and rehabilitation methods is a key objective. Composite materials, such as FRCM (Fabric-reinforced Cementitious Matrix), have proven to be a viable option for increasing durability of existi...

In this project several fiber reinforced cement-based composites (FRCCs) were studied, in which a CaO-based expansive agent was added in order to help in reducing thecracking induced by drying shrinkage. Two different kinds of fibers were tested: brass-coated hooked steel fibers and flat & flexible amorphous metallic fibers. All the mixtures were c...

The use of Fiber Reinforced composites with Cement Matrix (FRCM) seems to acquire an increasing interest in applications to masonry structures, due to their low impact, and a deeper understanding of the mechanical interaction between support and reinforcement is certainly necessary. The effectiveness of these interventions strongly depends on the b...

Self-leveling lightweight mortars were developed to attain good workability, sufficient compressive strength (at least 5 MPa after 28 days of wet curing), and low specific weight (less than 1100 kg/m³), as well as low thermal conductivity (lower than 0.3 W/m∙K). The attention was also focused on the sustainability of this construction material, whi...