Splitting Tensile Strength
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. APPARENT DENSITY AS AN ESTIMATOR OF WOOD PROPERTIES OBTAINED IN TESTS WHERE FAILURE IS FRAGILE
ABSTRACT The use of new wood species in construction requires knowledge of their properties for safer and more economical structural sizing. In Brazil, structural projects are carried out according to the standard document ABNT NBR 7190:1997. Tests required by this standard for the complete characterization of species require large machines with high costs,
Eng. Agríc.. Publicado em: 2020-02
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2. Incorporação de lodo de estação de tratamento de água (ETA) como agregado miúdo em concretos: avaliação das propriedades físico-mecânicas
RESUMO O presente trabalho tem como objetivo principal investigar a potencialidade do emprego de lodo de estação de tratamento de água (ETA) moído e calcinado em substituição ao agregado miúdo em concretos de cimento Portland, assim evitando o descarte em aterros sanitários e se tornando uma possível alternativa de reutiliza-ção desse material. Fo
Matéria (Rio J.). Publicado em: 13/06/2019
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3. Incorporação de lodo de estação de tratamento de água (ETA) como agregado miúdo em concretos: avaliação das propriedades físico-mecânicas
RESUMO O presente trabalho tem como objetivo principal investigar a potencialidade do emprego de lodo de estação de tratamento de água (ETA) moído e calcinado em substituição ao agregado miúdo em concretos de cimento Portland, assim evitando o descarte em aterros sanitários e se tornando uma possível alternativa de reutilização desse material. For
Matéria (Rio J.). Publicado em: 20/05/2019
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4. Experimental and numerical investigation on the dumbbell-shaped specimen of concrete-like materials under tension
Abstract Mortar is an important component of concrete. It is of great significance to obtain its tensile properties accurately. The structure heterogeneity of mortar specimens is high. Specimens are prone to fracture nearby interfaces between specimens and loading plates because of the inhomogenous stress distribution during the testing, which leads that ef
Lat. Am. j. solids struct.. Publicado em: 02/07/2018
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5. Technical viability of self-compacting concretes with by-products from crushed coarse aggregate production
Abstract The main objective of this work is to present the technical viability of Self Compacting Concretes (SCC) containing by-products from crushed coarse aggregate production. For this purpose, a vast characterization of these by-products was made; six mixtures of SCC were produced using two different aggregates: granite and mica schist. The binder/dry ag
REM, Int. Eng. J.. Publicado em: 2016-09
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6. Further Investigation on the Real Rate Effect of Dynamic Tensile Strength for Concrete-Like Materials
Abstract Based on dynamic direct tensile tests, splitting tests and spalling tests, it is found that the experimental tensile strength of concrete-like materials greatly increases with loading-rate. This kind of dynamic tensile strength enhancement may be caused by the combination influence of the inertia effect, real rate effect and end friction effect (her
Lat. Am. j. solids struct.. Publicado em: 2016-01
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7. Dynamic compressive and splitting tensile tests on mortar using split Hopkinson pressure bar technique
Dynamic compressive and tensile properties of mortar under impact loading were investigated experimentally by using a split Hopkinson pressure bar (SHPB) apparatus with pulse shaping technique. Firstly, the basic principle, experimental limitations and some feasible improvements/modifications of SHPB technique used for dynamic tests on concrete-like material
Lat. Am. j. solids struct.. Publicado em: 2015-08
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8. Mechanical performance of concrete with incorporation of coarse waste from the marble industry
The waste resulting from marble extraction process is usually disposed of in landfills or dumps and its accumulation is causing serious environmental and landscaping problems. One way of reusing marble waste is to consider its incorporation in structural concrete as a non-primary aggregate. This research work attempts to alleviate the situation and provide i
Mat. Res.. Publicado em: 30/09/2014
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9. Preparation of refractory calcium aluminate cement using the sonochemical process
Calcium aluminate cements (CAC) were prepared using the sonochemical process, followed by heat treatment. A study was made of the action of ultrasonic waves and the influence of thermal treatment conditions on two initial molar compositions of 1:1 and 1:2 of calcia:alumina. The aqueous suspension containing the raw materials (A-50 alumina and CaO) was subjec
Mat. Res.. Publicado em: 22/03/2013
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10. Waste polyethylene terephthalate as an aggregate in concrete
This paper reports the strength behaviour of concrete containing three types of recycled polyethylene terephthalate (PET) aggregate. Results are also analysed to determine the PET-aggregate's effect on the relationship between the flexural and splitting tensile strengths and compressive strength and to know whether the relationships between compressive stren
Mat. Res.. Publicado em: 08/02/2013
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11. Concreto ultraleve® estrutural com pérolas de EPS: caracterização do material e estudo de sua aplicação em lajes / Structural ultra lightweight concrete with EPS beads: material characterization and study of its use in slabs
The use of lightweight concrete is mainly due to the benefits provided by reducing the density of the material such as smaller efforts on structures, economy of molds and scaffolding, as well as lower costs of transportation and erection of precast constructions. Currently, besides the technical and economic issues, the choice of building materials should ta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/10/2012
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12. Prediction the effects of ZnO2 nanoparticles on splitting tensile strength and water absorption of high strength concrete
In the present paper, two models based on artificial neural networks (ANN) and gene expression programming (GEP) for predicting splitting tensile strength and water absorption of concretes containing ZnO2 nanoparticles at different ages of curing have been developed. To build these models, training and testing using experimental results for 144 specimens pro
Materials Research. Publicado em: 07/06/2012