The Industrial - Building Association Teplit Ltd, Ekaterinburg, Russia THE PRACTICE OF UTILIZATION...

The Industrial - Building Association Teplit Ltd, Ekaterinburg, Russia

THE PRACTICE OF UTILIZATION OF FLY ASH OF REFTINSKAYA TPPs.

V. Levchenko

The Industrial - Building Association Teplit Ltd

П


Ten-storey house in Reftinskiy


Town house for 85% consists of fly ash

Town house in settlement Swetlorechenskiy


Three-storey house for 85% consists of fly ash

The complex «Colnechniy»


Three-storey house for 85% consists of fly ash

The complex «Solnechniy»


Teplit house for 85% consists of fly ash

REFTINSKAYA TPPs

Ash dumps of REFTINSKAYA TPPs

4,5 mln.t. of fly ash

Ash dumps

Chemical compound of fly ash of REFTINSKAYA TPPs

Parametres Content, mass. %

SiO2 Al2O3 Fe2O3 СаО+MgO SO3 R2O ппп

Requirements GOST 25818, СН-277

≥45 ≤ 10 ≤ 2,0 ≤ 3,0 ≤ 5

Actual value 58-62 25-30 5-8 3-5 0,1-0,5 0,5-0,7 1-2

Characterisation of fly ash of REFTINSKAYA TPPs

Parametres Density ,kg/м3

Bulk ,кg/м3 Humidity ,

mass. %

The specific surface

м2/kg

Specific effective

activity ЕRN , Bк/кg

Requireme

nts GOST 25818, СН -277-80

<1,0 >250 <370,0

Actual value 1980-2000 720-750 0,2 280-350 93,0


The total production capacity of Teplit permits to recycle up to 180 thousand tons of fly ash per year and to produce 520 000 cubic meters of the aerated concrete blocks, from which one can build three thousand and five hundred houses of 150 square meters each

Plant Reftinskiy

Plant Berezovskiy


The products of cellular autoclave curing concrete (in accordance with GOST 31360-2007-Twinblock).


Product specifications

Density,

kg/m3

Strength

class

Mark on frost

resistance

Coefficient of thermal

conductivity, Vt/m∙К

Drying shrinka

ge, mm/m

400 В 2,5

F50 0,09 0,47

500 В 2,5- 3,5

F100 0,12 0,57

600 В 3,5-5,0

F100 0,15 0,56


The enlarged blocks (UTB)


Dry building mixes


Factors reducing the use of ash and slag materials

1.The lack in the country of a technical policy and the system approach at the decision of the specified problem;

2.The lack of economic interest of power stations to recycle ash and slag materials. As the main task of power stations is the generation of heat and electricity. In addition, all costs of transportation, warehousing and storage of ash and slag materials are included in the production cost price and are paid by energy consumers, and real economic incentives to reduce such costs are absent;

3.Decrease of profitability of the use of cheap raw materials (ash and slag) of thermal power by industry of construction materials, due to a sharp increase in the cost of rail and road transportation ;

4.The lack of legislative and regulatory frameworks sufficient to economic incentives to increase the use of ash and slag materials;


Директор Левченко Владимир Николаевич


Thank you!

The Industrial - Building Association Teplit Ltd, Ekaterinburg, Russia THE PRACTICE OF UTILIZATION...

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