Durability behavior of steelmaking slag masonry mortars

Santamaría-Vicario, I.; Rodríguez, Ángel; Junco, C.; Gutiérrez-González, S.; Carpintero, Verónica Calderón

doi:10.1016/j.matdes.2016.02.080

Cited by 39 publications

(25 citation statements)

References 14 publications

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“…If a relationship between mechanical resistance and the imprints made in each of the tested mortars is established, it can be confirmed that the BM, with the greater imprint is that which more greatly withstands compression (35.1 MPa), whereas the rest of the mortars, with lesser imprinting, are resistant to compression between (15)(16)(17)(18)(19)(20). In all cases, materials lightened with expanded clay which incorporated recycled concrete and mixed aggregates improve resistance to abrasion, with very uniform resistance to compression.…”

Section: Physical Results: Mechanical Strength Porosity and Surfacmentioning

confidence: 97%

“…The accelerated oxidation process in the Kesternich chamber—SO 2 was used to evaluate the behavior of mortars exposed to sulfur dioxide, that industrial atmospheres contain and polluting gases present in urban areas . Figure shows the variations in their mechanical strength.…”

Section: Durability Resultsmentioning

confidence: 99%

“…The accelerated oxidation process in the Kesternich chamber-SO 2 was used to evaluate the behavior of mortars exposed to sulfur dioxide, that industrial atmospheres contain and polluting gases present in urban areas. 20 Figure 4 shows the variations in their mechanical strength. In the inspection carried out of the specimens after 15 cycles of exposure to the Kesternich test or of the SO 2 , no significant perceivable signs of modification to the material was detected, thus, it can be confirmed that the mortars tested can greatly withstand polluting gases in sulfurous industrial atmospheres.…”

Section: Durability Resultsmentioning

confidence: 99%

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Durability of lightweight concrete made concurrently with waste aggregates and expanded clay

Muñoz‐Ruiperez

Rodríguez

Junco

et al. 2018

Structural Concrete

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The use of waste aggregates simultaneously with expanded clay to obtain lightweight masonry mortars in construction constitutes a good way for a more sustainable society. This research presents a study about the physical properties of the mortars fabricated with construction and demolition wastes and expanded clay as lightweight material by way of flexural and compressive strength, porosity and surface abrasion resistance. Computerized tomography and microporosity show a good distribution of materials and pores. The paper also contains an analysis of the influence in the durability after incorporating different proportions of recycled aggregates. The results indicate that the properties do not suffer significant changes in external appearance after accelerated aging tests as thermal shock, saline solution, freeze and thaw, resistance to SO2 and carbonation. No flaking, cracking, splitting or cracks in the specimen's outer surfaces being observed. Therefore, it can be confirmed that the masonry mortars tested performed well in all cases when exposed to external climatic atmospheres according to the international standards.

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Section: Physical Results: Mechanical Strength Porosity and Surfacmentioning

confidence: 97%

Section: Durability Resultsmentioning

confidence: 99%

Section: Durability Resultsmentioning

confidence: 99%

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Durability of lightweight concrete made concurrently with waste aggregates and expanded clay

Muñoz‐Ruiperez

Rodríguez

Junco

et al. 2018

Structural Concrete

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“…With regard to masonry mortars; previous investigations have designed granulometries using EAFS as a thick component and LFS as filler; producing workable mixes and showing a reliable mechanical performance [7][8][9].…”

Section: Product Descriptionmentioning

confidence: 99%

Declaration of performance (DOP) and CE marking of cement mortars made with recycled steel waste = Declaración de prestaciones y marcado CE de morteros de cemento fabricados con residuos de acería valorizados

Santamaría-Vicario

Carpintero

González³

et al. 2019

BMA

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The process of preparing a "Declaration of Performance" is presented for a masonry mortar manufactured with by-products from the steelmaking industry recycled as aggregates, for subsequent CE Marking, with the aim of promoting its commercialization within the European Union. Specific tests are applicable to construction mortars, both for masonry and rendering and plastering, for the verification of their performance, in accordance with harmonized standards EN-998-1 and EN 998-2. The study likewise sets out the Systems of Assessment and Verification of Constancy of Performance (SAVCP): System 4 for Rendering and Plastering Mortars and Systems 4 and 2+ for Masonry Mortars. Special importance in the new procedures for CE Marking is placed on the manufacturers, as they assume responsibility both for determining the properties of the materials and for establishing a control process in the factory. This document describes the technical development of the tests, in accordance with the applicable harmonized standards, for verifying the performance of the mortars designed with steelmaking slags as aggregates. The study concludes with the presentation of a Technical Data Sheet for the preparation of the corresponding CE marking for these new designed mortars.

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“…Durability of mortars with blast-furnace slag as the filler is described by Santamaría-Vicario et al 8 The research focused on the influence of a combination of several adverse environments -frost with water, alternating between humid and dry environment, simulation of a marine environment or crystallization of salts and gaseous SO 2 . Based on the results and findings, the possibility of using slag as a replacement of the aggregate was confirmed.…”

Section: Introductionmentioning

confidence: 99%

Durability of materials based on a polymer-silicate matrix and a lightweight aggregate exposed to aggressive influences combined with high temperatures

Melichar¹,

Bydžovský²,

Dufka³

2017

Mater. Tehnol.

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The paper presents the results and findings of the research focused on an examination of progressive degradation of newly developed composite materials. These materials consisted of a polymer-silicate matrix and a mix of fillers with a considerable proportion of a porous aggregate. The matrix also contained a larger amount of alternative raw materials, in particular hightemperature fly ash and blast furnace slag. Prepared mixes were tested after different periods of exposure to an aggressive environment -for 45 d and 90 d (50 and 100 cycles). First, after 45 d and 90 d, reference materials (i.e., those not exposed to aggressive influences) were tested. In parallel, tests were carried out with materials exposed to a solution of chloride ions and subjected to cyclic freeze and thaw. The last mode of testing in this research included materials exposed to cyclic freeze and thaw, chloride-ion solution and the consequent thermal load of up to 1000°C. The level of degradation was evaluated by means of physico-mechanical, physico-chemical and microstructural test methods. It was found that the exposure to cyclic freeze and thaw, water and chloride ions has no considerable influence on the reduction of the thermal resistance of the developed mix designs of polymer-silicate-based composites. Keywords: durability, porous aggregate, polymer-silicate matrix, long-term exposure, chloride ions, water, frost, fire, microstructurê lanek predstavlja rezultate in izsledke raziskave, osredoto~ene na preverjanje napredujo~ega slab{anja na novo razvitih kompozitnih materialov. Ti materiali so sestavljeni iz polimer-silikatnih matric in me{anice polnil z znatnim dele`em poroznih agregatov. Matrica je vsebovala tudi ve~jo koli~ino alternativnih surovih materialov, visokotemperaturni dimni{ki pepel iǹ lindro. Pripravljene me{anice so bile testirane po razli~nih~asih izpostavljanja agresivnemu okolju -45 d in 90 d (v 50 in 100 ciklih). Najprej so bili, po 45 d in 90 d, testirani referen~ni materiali, tisti, ki niso bili izpostavljeni agresivnim vplivom. Vzporedno pa so bila izvedena testiranja materialov, ki so bili izpostavljeni raztopini kloridnih ionov ter nato cikli~no zamrznjeni in nato staljeni. Zadnji na~in testiranja v tej raziskavi je bilo izpostavljanje materialov cikli~nemu zamrzovanju in taljenju, kloridni raztopini ionov in ter toplotni obremenitvi do 1000°C. Stopnja degradacije je bila ocenjena glede na fizikalno-mehanske, fizikalno-kemi~ne in mikrostrukturne testne metode. Ugotovljeno je bilo, da izpostavljenost cikli~nemu zamrzovanje in taljenju, vodi in kloridnim ionom, nima ve~jega vpliva na zmanj{anje termi~ne odpornosti na razvite me{anice iz polimer-silikatnih kompozitov.

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Durability behavior of steelmaking slag masonry mortars

Cited by 39 publications

References 14 publications

Durability of lightweight concrete made concurrently with waste aggregates and expanded clay

Durability of lightweight concrete made concurrently with waste aggregates and expanded clay

Declaration of performance (DOP) and CE marking of cement mortars made with recycled steel waste = Declaración de prestaciones y marcado CE de morteros de cemento fabricados con residuos de acería valorizados

Durability of materials based on a polymer-silicate matrix and a lightweight aggregate exposed to aggressive influences combined with high temperatures

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