[PDF] Top 20 Rev. IBRACON Estrut. Mater. vol.5 número3 pt a01v5n3

... (Editor, UFRGS, Porto Alegre, RS, Brazil) • José Luiz Antunes de Oliveira e Sousa (Editor, UNICAMP, Campinas, SP, Brazil) • Luiz Carlos Pinto da Silva Filho (Editor, UFRGS, Porto[r] ... See full document

... tive has led to the study of red mud for various applications, such as adsorbent for the removal of heavy metals from aqueous solu- tions [4], building materials such as bricks [5], ceramics and tiles [6], ceramic ... See full document

... The use of calculation models I and II presented in the Brazilian Standard Code ABNT NBR 6118:2007 [1] are widely discussed. Mota & Laranjeiras [4] concluded via electronic mailing list that cal- culation model I is ... See full document

... In this section, are presented the experimental methodology and the results obtained in the development of a cement-based com- posite with characteristics more appropriate to reconstruct the ten- sile zones of RC beams, ... See full document

... Figure 2� � Stringer�s stress theoretical variation in section S21 due to passage of the loaded operational train type on concrete (left) and reinforcement.. limit state of fatigue” of [r] ... See full document

... Table 2 summarizes comparisons between the experimental and theoretical results. It is possible to perceive that the recommenda- tions of ACI are conservative and show a high coeficient of varia- tion if compared to the ... See full document

... The heterogeneity of the composition; the speciic mass with lower density; the adhered mortar quality and the amount of adhered mortar and the variability of the properties are all important char- acteristics of recycled ... See full document

... In Brazil, CAMACHO [5] was the irst to perform studies on the compressive behaviour of block masonry. The author stat- ed that masonry is the oldest and most classical construction method used by man, while the ... See full document

... Results of crack openings obtained from beams VFC_PC_01 and VFC_PC_02 cannot be compared directly, due to the difference regarding the maximum and minimum loads applied to generate th[r] ... See full document

... Concrete structures, especially reinforced concrete structures, are one of most used types of structures around world. When it is lo- cated in non aggressive environments, these types of structures respect, in general, ... See full document

... Another study considered important is [4], which proposed a typology of bolted connection with circular cross section CFT column. In this paper it was presented an analytical study, us- ing a reined three-dimensional ... See full document

... Several types of studies on precast concrete connections have been done in research centers around the world. In general, studies include the development of connections which provide high rigidity and easiness of ... See full document

... Firstly, the compressive strengths found at 7, 28 and 91 days will be compared for the same individual unit compositions and after the mixtures costs, as well as the modulus of elastic[r] ... See full document

... For this purpose, the behavior of short composite steel- concrete columns was studied using physical experimental tests, measuring the increase in temperature of the surface and intern[r] ... See full document

... Table 5) shows that the results obtained with the approximate stiffness criterion are safer with only 4,6% of the Mtest/Mpred values below the appropriate safety range (smaller than ... See full document

... (Editor, UFRGS, Porto Alegre, RS, Brazil) • José Luiz Antunes de Oliveira e Sousa (Editor, UNICAMP, Campinas, SP, Brazil) • Luiz Carlos Pinto da Silva Filho (Editor, UFRGS, Porto[r] ... See full document

... Approximately 35–40% of bauxite ore is discarded in the form of strongly alkaline RM slurry ‎[4]. This mud contains about 60 vol. % of solid content in the form of superine particles. Therefore, this mate- rial ... See full document

... Among the products generated in the processing of iron ore, mud from washing, in most cases, is stored in tailings dams without a commercial use because the technology to transform this waste in metallic iron is more ... See full document

... By the statistical analysis with multiple comparison of compressive strength results of concrete blocks, presented in Tables 3 and 4 and Figures 11 and 12, it is observed that for traits with replace- ment of 50%, 80% ... See full document

... The column-foundation connection through socket consists of em- bedding part of the precast column into the cavity of the foundation element. This connection is widely used in precast concrete struc- tures all over the ... See full document