Possibilities of Lightweight High Strength Concrete Production from Sintered Fly Ash Aggregate (original) (raw)
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Strength Characteristics of Concrete with Sintered Fly Ash Aggregate
This paper gives a research on Sintered fly ash. Which is a waste material of coal firing Thermal power plants (TPPs) and its accumulation near power plant . The sintered fly ash is procuder from Gallantt group of industries .This industries is located near Sector-23, GIDA Sahjanwa city in Gorakhpur district in Uttar Pradesh state. The plant is an establishment of 14th November, 2006 .It has a generation capacity of 25 MW. These theses explain the various utilization of sintered fly ash and its ordinary Portland cement and properties in concretecauses severe pollution problems. Its utilization as a raw material for cube (Brick) making will be a very usefully solution in our economical and environmental aspects. Ordinary Portland cement (OPC) namely: 33, 43 and 53 which are commonly used in construction industry.This research paper in use of the Ordinary Portland cement (OPC) 43grade and use the sintered fly ash many percentage 5%, 10% ,15%, and 20% remove the aggregate. The high emission of CO2 from cement industry, steel plants, waste products from the thermal plants for the generation of electric power to meet the demand of growing population resulted in the production of 70 million tons of coal ash per year from burning about 200 million tons of coal per year for electric power generation .This research paper explain the various utilization of sintered fly ash and its ordinary Portland cement and properties in concrete.
International Journal of Engineering Research and Technology (IJERT), 2015
https://www.ijert.org/investigation-on-the-development-of-light-weight-concrete-with-sintered-fly-ash-aggregate-and-activated-fly-ash-in-blended-cement https://www.ijert.org/research/investigation-on-the-development-of-light-weight-concrete-with-sintered-fly-ash-aggregate-and-activated-fly-ash-in-blended-cement-IJERTV4IS040081.pdf The use of activated fly ash in blended cement and sintered fly ash aggregate in concrete as a partial replacement of granite aggregate has been examined .The concrete so formed is light in nature(upto 40% reduction in unit weight)and development of such concrete minimises consumption of granite rock resulting in the protection of natural environment. Present investigation considers M20 and M25 grade concrete It is observed that with partial (20%,30% and 40% by volume)replacement of natural granite aggregate by sintered aggregate the physical properties of concrete such as compressive strength and Young's modulus of elasticity are retained.
Mechanical properties of concrete composed of sintered fly ash lightweight aggregate
MATEC Web of Conferences
This paper investigates the effect of sintered fly ash lightweight aggregate as coarse aggregate substitution on the mechanical properties of concrete. The lightweight aggregate (LWA) was produced using the cold bonded method and then sintered at a temperature of 900°C. An alkaliactivated system was applied as a binding agent of the LWA. Fly ash was used as precursor while sodium hydroxide and sodium silicate were employed as alkali activators. Three variations of the LWA dosage were performed, which were 0%, 50%, and 100 % of the volume of coarse aggregate in the concrete mixture. The mechanical properties of the concrete investigated in this research are the compressive strength and split tensile strength. The result showed that the mechanical properties of the concrete slightly decrease along with the increased dosage of the LWA in the mixture. However, employing sintered fly ash the LWA is proven as an effective solution in reducing the concrete density without sacrificing its s...
Replacement of Coarse Aggregate with Sintered Fly Ash Aggregates for Making Low Cost Concrete
The present research establishes a relationship of bulged diameter with densification and hydrostatic stress in forming of sintered fly ash. In present study A mix design has been done for M25 Grade of concrete by IS method. Ordinary Portland cement of 43 Grade is selected and sintered fly ash aggregates were prepared by mixing sintered fly ash with cement and water for making low cost concrete. Which is a waste material of coal firing Thermal power plants (TPPs) and its accumulation near power plant.The sintered fly ash is obtained from Gallant group of industries. This industry is located near Sector-23, GIDA Sahjanwa city in Gorakhpur district in Uttar Pradesh state. In this paper author investigate the Compressive Strength and Flexural strength test of the concrete at different ages i.e. 3 days, 7 days, 14 days, 28 days, 56 days and 90 days. Sintered Fly Ash Aggregates is replaced 10%, 20%, 30%, 40% and 50% in the place of Corse aggregate. These theses explain the various utilization of sintered fly ash and its ordinary Portland cement and properties in concretecauses severe pollution problems. Its utilization as a raw material for cube (Brick) making will be a very usefully solution in our economical and environmental aspects.
International Journal of Engineering Research and, 2015
The use of activated fly ash in blended cement and sintered fly ash aggregate in concrete as a partial replacement of granite aggregate has been examined .The concrete so formed is light in nature(upto 40% reduction in unit weight)and development of such concrete minimises consumption of granite rock resulting in the protection of natural environment. Present investigation considers M20 and M25 grade concrete It is observed that with partial (20%,30% and 40% by volume)replacement of natural granite aggregate by sintered aggregate the physical properties of concrete such as compressive strength and Young's modulus of elasticity are retained.
STUDY OF CONCRETE MADE USING FLY ASH AGGREGATES
Journal ijetrm , 2024
Many researchers have been executed within the vicinity of fly ash usage in the past. It in particularly concentrated on alternative of cement with fly ash but production of artificial aggregates with fly ash helps in using massive volumeof ash in concrete. The sector is lots interested in this part currently due to this massive scale utilization which additionally reduces environmental pollution and dwindling of natural assets.This paper particularly makes a specialty of manufacturing system of light weight aggregates the usage of pelletizer and curing has been carried out in cold bonded technique. The properties of these fly ash aggregates have been tested and in comparison, with natural gravel and the study shows at suggest that cold bonded fly ash aggregates may be used as an aggregate replacement materialin concrete. The strength property and density of concrete made with artificial fly ash aggregates and natural gravel have been additionally studied which confirms that creation of fly ash aggregates in concrete reduces the compressive strength however meets the desired strength for use as a structural material.
The Use of Fly Ash as Additive Material to High Strength Concrete
Jurnal Teknik Sipil dan Perencanaan, 2018
The use of coal waste (Fly Ash) is currently being developed in building materials technology, as a highstrength concrete mix material. This study aims to determine the strength of concrete by adding fly ash as a substitute for cement in high-strength concrete mixtures. This research was conducted using an experimental method to obtain results and data that would confirm the variables studied. The total numbers of specimens used in this study were 36 pieces with different sizes of cube tests which were 15 cm x 15 cm x 15 cm. A total of 36 concrete samples were used to test the compressive strength of concrete with a percentage of Fly Ash in 0% (normal concrete), 20%, 25% and 30% with a concrete treatment age of 7 days, 21 days and 28 days. A total of 12 more samples were used to test water absorption in concrete at 28 days of maintenance. Each percentage of Fly Ash uses 3 concrete test samples. The increase in compressive strength occurs at 7, 21 and 28 days in concrete. However, the compressive strength of concrete produced by concrete using the percentage of Fly Ash is always lower than the value of normal concrete compressive strength. From testing the compressive strength of concrete at 28 days of treatment with
Effect of lightweight fly ash aggregate microstructure on the strength of concretes
Cement and Concrete Research, 1997
The structure and properties of sintered fly ash lightweight aggregate was modified by heat and polymer treatments to obtain aggregates different in their strength, absorption and pozzolanic activity. These properties of the aggregates were accounted for by changes in their microstructure. The strength of concretes of equal effective watercement ratio prepared from these aggregates was determined at different ages to
Materials
Despite the undoubted advantages of using lightweight concrete, its actual use for structural elements is still relatively small in comparison to ordinary concrete. One of the reasons is the wide range of densities and properties of lightweight aggregates available on the market. As a part of the research, properties of concrete based on sintered fly ash were determined. The ash, due to its relatively high density is suitable to be used as a filler for structural concretes. Concrete was based on a mixture of sintered fly ash and exfoliated vermiculite aggregate also tested. The purpose of the research was to determine the possibility of using sintered fly ash as alternative aggregate in structural concrete and the impact of sintered fly ash lightweight aggregate on its physical, mechanical and durability properties. Conducted tests were executed according to European and Polish standards. Created concretes were characterized by compressive strength and tensile strength ranging from ...