PROPERTIES OF HIGHLIME TAKE FLIGHT ASH CONCRETE FLOOR
Fly ash would be a waste product coming from coal centered thermal electrical power stations. About seven million a lot of fly lung burning ash is being developed annually coming from these thermal power areas in Poultry. Concerted efforts are needed to make the material used to a great extent.
These paper give the benefits of an research on the performance of travel ash concrete made with ASTM C class fly ashes from two sources. PC42, 5 concrete used in the experiments adjusts to TS19 (Turkish Standards).
A comparison between concretes with and without fly ash was provided for different aspects. All the concrete mixtures contained polyhydroxy carbon salt plasticizer which usually complies with ASTM C 494-81 Type D. Their workabilities were kept regular.
As freshly-mixed concrete properties slump, product weight, air flow content, setting time and bleeding values were determined.
While mechanical houses compressive strength and had been measured following 24 hours, six, 28 and 90 days.
Durability in terms of cold and thawing resistance (ASTM C 666 Procedure A), and permeability were also looked into.
Keywords: Fly ash, concrete floor properties, binding material, micro-structure
Senel Artirma, Geophysics Professional, Quality Assurance Manager of Nuh Beton Ready-Mixed Concrete Company, Turkey.
Erdem Tandirli, Detrimental Engineer, Top quality Control Chief of Nuh Beton Ready-Mixed Concrete Business, Turkey.
1 . INTRODUCTION
Environmental problems and over-comsumption of energy resources has been but still are the the majority of concerning problems for the modern world. In this respect the application of fly lung burning ash which is a waste materials product in the thermal electrical power stations by ready-mixed cement industry as a binder material can be an effective way both of decreasing the ash release out to the planet and of concrete consumption hence of conserving the resources over a national size.
From the tangible technology's viewpoint, the usage of soar ash causes qualitative within concrete houses. The answer as to if these adjustments were improvement or not really can be offered only by knowing the motives of consumption.
For this purpose take flight ashes were added at addition to as a substitute for a few part of the concrete, and new and toughened concrete properties were investigated.
2 . TRIAL AND ERROR STUDIES
installment payments on your 1 Supplies
2 . 1 ) 1 Concrete
The concrete used is definitely Turkish, portland cement (PC 42. 5) and comforms to European standart TS19 while about corresponds to ASTM C 150-89 Type My spouse and i. Its chemical composition, and principal chemical substances are described in Table 1 . a, physical and mechanical houses in Table 1 . b along with standart limits.
Table 1 . a Chemical houses of concrete
Components, %PC 42. 5TS 19ASTM Type I
MgO1. 205 maximum. 6 utmost.
SO31. 973. 5 maximum. 3 utmost.
Total Alkalies: Na2O+0. 658x K2O0. 00-0. 6 utmost.
Insoluble Residue0. 831. a few max. zero. 75 utmost.
Loss in Ignition1. 154 max. three or more max.
a couple of
Table 1 ) b Physical and mechanical real estate of concrete
PC forty two. 5TS 19ASTM Type I
Specific The law of gravity, gr/cm33. 12--
Specific Area, cm2/gr32682800 min. 2800 minutes.
Setting Instances, minutes
Initial19560 min. 45 min.
Final216600 max. 375 max.
Compressive Strength, MPa
2 days27120 min-
several days44231. 5 min. nineteen. 3 minutes.
28 days-42. 5 min27. 6 min.
2 . 1 ) 2 Travel ashes
Fly ashes had been from two different thermal power plant life using lignite as combustible, namely Seyitomer and Cayirhan both of that happen to be located in western Turkey. Their chemical compositions are given in Table 2 . a, physical and mechanised properties in Table 2 . b, in comparison with ASTM C 618-89a limits and relevant Turkish standart TS 639 limits.
Table 2 . a Substance properties of fly ashes
References: 1 . ACI 226. 3R-96, " Use of Travel Ash in Concrete",
installment payments on your S. D. SARKAR, " Fly Lung burning ash and Its Water balance Characteristics in Cementitious Matrix", Fourth International Conference upon Concrete Technology in Expanding Countries, The fall of 1996