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Brazilian sugar cane bagasse ashes from the cogeneration industry as active pozzolans for cement manufacture
(ELSEVIER SCI LTD, 2011)
For proper management of wastes and their possible recycling as raw materials, complete characterization of the materials is necessary to evaluate the main scientific aspects and potential applications. The current paper ...
Efeito da redução do teor de cimento no desempenho de matrizes e compósitos cimentícios
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia CivilUTFPR, 2016-11-23)
The main purpose of this research is to investigate the effect of partial replacement of cement by fine particles materials – limestone and nanosilica – on the performance of cementitious matrices and composites. The concern ...
Measuring market conduct in the Brazilian cement industry: a dynamic econometric investigation
(Springer, 2009-05)
Indirect assessments of market conduct have become widespread in the New Empirical Industrial Organization-NEIO literature. Recently, Steen and Salvanes (1999, Int J Ind Organ 17:147-177) provided a flexible dynamic ...
Effect of metakaolin pozzolanic activity in the early stages of cement type II paste and mortar hydration
(2008-04-01)
The cement industry is one which most emits polluting gases to the environment, due to the calcium carbonate calcination, as well as to the burning of fossil fuels during the manufacturing process. Metakaolin (MK), in ...
Use of simple non-destructive techniques to evaluate the hydration reactions of PVA-modified cement pastes
(Elsevier, 2017-02)
The rapidity of the hydration reaction defines the final properties of cement-based materials. Global techniques show the overall hydration reaction and make it easier for users to evaluate it in a simple non-destructive ...
Coupling of composite resin cements to quartz fiber posts: A comparison of industrial and ""chairside"" treatments of the post surface
(QUINTESSENCE PUBLISHING CO INC, 2008)
Purpose: To evaluate the influence of surface treatments on microtensile bond strength of luting resin cements to fiber posts. Materials and Methods: Forty-two quartz fiber posts (Light Post, RTD) were divided into 7 groups ...
Investigating the possible usage of elephant grass ash to manufacture the eco-friendly binary cements
(Elsevier B.V., 2016-03-10)
In recent years, agro-industrial residues are focusing attention worldwide as a new source of pozzolans; in Brazil one of the wastes generated from agro-industrial activities comes from elephant grass that is cultivated ...
Effect of recycled polyethylene terephthalate strips on the mechanical properties of cement-treated lateritic sandy soil
(2020-12-01)
The civil engineering construction industry is nowadays one of the largest consumers of natural resources. Therefore, the proposal of using alternative materials that seek to reduce waste production or the use of previously ...
Alkali-Activated Hybrid Cement from Mineral Wool Fiber Waste and OPC
(MDPICentro de Investigación Innovación y Desarrollo de Materiales (CIDEMAT)Grupo de Investigación en Infraestructura (GII)Basilea, Suiza, 2023)
Uma análise preliminar da energia embutida no cimento considerando Brasil e Reino Unido
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2017-07-15)
Since the 1970’s energy crisis, search for a reduction in energy consumption in the
production processes has increased. One of the most used methods in this context,
refers to the energy embedded in the product, which ...