scholarly journals Composite Properties and Micromechanical Analysis of Highly Ductile Cement Composite Incorporating Limestone Powder

2018 ◽  
Vol 8 (2) ◽  
pp. 151 ◽  
Author(s):  
Jung Hyun ◽  
Bang Lee ◽  
Yun Kim
2005 ◽  
Vol 27 (1) ◽  
pp. 41-47 ◽  
Author(s):  
A. Laukaitis ◽  
R. Žurauskas ◽  
J. Kerien≐

2013 ◽  
Vol 40 (2) ◽  
pp. 151-157 ◽  
Author(s):  
Kazim Turk ◽  
Serhat Demirhan

In this study, an experimental program is conducted to understand the effect of the limestone powder (LSP) content replaced by silica sand on the composite properties. For this purpose, five different engineered cementitious composite (ECC) mixtures were adopted: ECC mixture with only silica sand (SS) for control purposes and four ECC mixtures in which SS is partially replaced by four levels of replacements (25%, 50%, 75%, and 100% by weight of total SS) of LSP. The properties of ECC mixtures produced were investigated for the ages of 3, 28, and 90 days. It was concluded that the mechanical properties of the ECC mixtures with LSP were in general higher than the reference mixture with only SS for all curing ages. Increase in the LSP content had a positive effect on the performance of the compressive strength, fracture toughness, and flexural strength at the ages of 3 and 28 days while this was not valid at the age of 90 days when compared to the reference mixture. Also, the ductility of the ECC beams strongly depends on the LSP content and specimen age.


2017 ◽  
Vol 731 ◽  
pp. 80-85
Author(s):  
Lukáš Hlubocký ◽  
Zdeněk Prošek

The article deals with the shrinkage of a cement composite with various contents of waste micronized limestone powder with a fraction size of 0-63 μm and crushed limestone with a fraction size of 0-2 mm. Waste micronized powder is produced by high-speed grinding of marble sludge. The difference in shrinkage of various mixtures has been described by means of structural analysis. Electron microscopy has been used for this analysis. Mixtures with 10 wt. % of cement and various ratios of micronized marble powder to crushed limestone (1: 1; 1: 2; 2: 1; 1: 0) were investigated. The increasing amount of waste micronized powder adversely affects the shrinkage of the cement composite. This effect is caused by the increasing water–cement ratio for the purpose of achieving the same workability of the mixture.


2018 ◽  
Vol 761 ◽  
pp. 193-196 ◽  
Author(s):  
Myroslav Sanytsky ◽  
Tetiana Kropyvnytska ◽  
Taras Kruts ◽  
Oleksander Horpynko ◽  
Iryna Geviuk

The strength development of a quaternary Portland cement composite system containing blast-furnace slag, zeolitic tuff and limestone powder is presented. The composition and particle size distribution of the constituents are optimized by the incremental coefficient of the surface activity of the zeolite-containing Portland composite cements. Zeolitic tuff and limestone powder of high specific surface area lead to the increase of the surface activity of the entire system and a corresponding improvement in the performance of the cement.


2007 ◽  
Vol 18 (2) ◽  
pp. 103-113 ◽  
Author(s):  
Hiroki Yamashita ◽  
Kazuo Yamada ◽  
Hiroshi Hirao ◽  
Seiichi Hoshino

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