International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
EFFECT OF MINERAL ADMIXTURES ON THE PROPERTIES OF SINTERED FLY ASH AGGREGATE CONCRETE Jiyo James1, Dr.K.B. Prakash2 1student-M.
Tech-Structural Engineering. Government Engineering College, Haveri, Karnataka, India 2Principal, Government Engineering College, Haveri, Karnataka, India ---------------------------------------------------------------------***--------------------------------------------------------------------fume belongs to the list. These materials will not only Abstract - This paper presents an experimental solve the disposal problem but also form a substitute investigation on the effect of mineral admixtures on the properties of sintered fly ash aggregate concrete. The for conventional materials in civil engineering mineral admixtures are added in replacement of cement by applications. Also using these materials will prove to be 10% and 20%. The mineral admixtures used in this work are cost effective. Usage of industrial waste materials such fly ash, ground granulated blast furnace slag and metakaolin. as fly ash, ground granulated blast furnace slag in civil The experiment was conducted on M60 grade concrete engineering applications not only solve disposal produced by sintered fly ash aggregate. The strength problem but also offer a cost-effective substitute for properties studied in this work are compressive strength, the conventional raw materials in the production of tensile strength, shear strength, flexural strength and impact concrete. strength. Also, the workability characteristics are studied through slump cone test, compaction factor test, Vee-Bee consistometer test. Along with these, near surface characteristics like water absorption and sorptivity are also studied.
The most commonly utilized pozzolanic waste material and has the biggest potential to use in concrete is the Fly ash (also known as pulverized fuel ash). In coal based power plants fly ash is the waste product.
Key Words: Sintered fly ash aggregate; mineral admixtures; workability; sorptivity; strength.
The molten iron slag from the blast furnace when quenched in water or steam ground granulated blast furnace slag (GGBFS or GGBS) is obtained. It is dried and grind into fine powder.
1. INTRODUCTION The important material in the construction industry is concrete over a long period of time. It has wide range of application and utilization in construction field. Technology advancement and increasing economy leads to construction industry to grow rapidly. This growth leads to demand of massive amount of concrete to be produced to satisfy the need. This in turn leads to increase in the production of raw material which is to be used in the production of concrete. The raw materials include cement, aggregates etc. The raw material which is used in the production of concrete is the second largest consumed material by humans. This leads to shortage of raw materials which in turn reduces the production of concrete. This shortage makes way to invent new type of material or source of material which can be effectively be used in the production of concrete with the same results obtained using conventional concrete. In this era of technology advancement, one of the better concepts is to use waste materials or materials which cannot be disposed easily to produce concrete. There are plenty of waste materials which can be used as raw materials. In that first stands fly ash which is a waste material produced in thermal power plant. Also blast furnace slag, silica Š 2017, IRJET
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Impact Factor value: 5.181
Mineral clay kaolinate when dehydroxylates to form metakaolin. Kaolin commonly known as china clay is rich in kaolinate. Metakaolin particle size is as fine as cement particles but not as fine as silica fume. 2. EXPERIMENTAL PROGRAM 2.1 Materials used 2.1.1 Cement The type of cement used in the experimentation is OPC43. The properties of cement are ascertained as per the IS 8112–1989 and the table 1 gives the physical property of cement. Table 1: Physical properties of cement:
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Physical properties Specific gravity Consistency
Test results 3.15 31%
Initial setting time
90min
Final setting time
330min
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