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1-4 |
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Evaluation of strength of geopolymer brick using prosopisjuliflora ash as partial replacement of fly ash
Abstract
The traditional masonry units like brick and regular cement blocks are not considered as sustainable, because it consumes fossil fuel & top fertile soil. In current situation the manufacturing of cement industries produces large extent of carbon-dioxide to nature. So we utilizes waste material such as prosopisjuliflora ash. PJA is the residue powder left after the combustion of wood. It is also difficult to decompose and also absorbs more groundwater. Therefore using PJA as a partial replacement of fly ash providing the green and clean environment. In this project a study has been carried out on manufacturing of geopolymer binder based bricks using fly ash, prosopisjuliflora ash and fine aggregate. Here the ProsopisJuliflora Ash as partially repaced to fly ash in geopolymer bricks of various percentages of 0%, 10%, 30% and 50%. Geopolymer bricks are relatively light weight and more flexible as compared to normal brick. These bricks are potentially ideal material for earthquake prone areas. The geopolymer bricks are good sound absorbent. So, these bricks can be used in auditoriums. The project result reveals that 10% of PJA enhance the compressive strength of geopolymer brick compared to other replacements.
Keywords – Prosopisjuliflora ash, fly ash, sand, sodium hydroxide, sodium silicate, compressive strength.
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Design of Plastic Flexible Pavement using sewer plastics
Author(s):
S.Ganeshpandi , R. Mayilmurugan , A.Andrew Xavier , M.Eswaramoorthi , M.KIRUTHIKA ME. , B.JeyaPrakash DAA.,BE.,ME., AMIE.,IAENG.,IABMAS.,IALCCE.,IABMAS.,AMACCE.,Ape-ECI.,LMCET.,MICI.,MISTE. , N.VENKATESHWARI ME..
DOI : 10.23883/IJRTER.2019.5017.YOZO7
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5-11 |
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Design of Plastic Flexible Pavement using sewer plastics
Abstract
Transportation contributes to the economic, industrial, social and cultural development of any country. The overall process in the plastic flexible pavement design is preparation of route plan, traffic volume study, geometric design, and collection of materials like plastic, aggregate, bitumen. And tests are carried out for materials to check their properties and strength with various compositions like as 4%, 8%, 12%, 16% and 20% of plastics in bitumen.
Keywords – Bitumen, used plastics, penetration test, poly ethylene, polypropylene, poly sterile.
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12-20 |
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EVALUATION ON COMPRESSIVE STRENGTH OF PAVER BLOCK BY USING GEOPOLYMER
Abstract
Paver block has been always one of the most used material in the construction sector. This content has been encouraged the development and use of new building materials such as Geopolymer. In this concrete, the cement is totally replaced by fly ash and alkaline solution to act as a binder in the concrete mix Geopolymer concrete achieve strength, an experimental investigation has been carried out for the geopolymer concrete and the mix design procedure is proposed of the quantity of fly ash, quantity of water, grading of fine aggregate, fine to total aggregate ratio, and sodium silicate to sodium hydroxide solution ratio. Sodium silicate solution and sodium hydroxide solution having various concentration (8M, 10M, and 12M) were maintained constant throughout the experiment. Water to geopolymer binder ratio of 0.35, alkaline solution to fly ash ratio of 0.61 and sodium hydroxide to sodium hydroxide ratio 1:1 of by mass were fixed on the basis of compressive strength. The temperature of oven heating was maintained at 70 °C for 24 hour duration and tested. It is observed that the results of compressive strength are well match with the required degree of compressive strength.
Keywords: Compressive strength, Crusher Dust, Fly ash, Super plasticizer, coarse aggregate.
4 |
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21-29 |
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EXPERIMENTAL STUDIES ON FIBER BASED CEMENT MORTAR CONTAINING FLYASH AND M-SAND
Abstract
In this present experimental investigation, the influence of fly ash, M-sand and polypropylene fibers on strength and durability properties is investigated. About 20% of cement is replaced by fly ash, replacement of natural sand by M- sand in proportions of 50% and 100% and polypropylene fibers of dosage 3.6kg/m3 is employed for 1:4 cement mortar mix. Strength and durability properties such as, acid resistivity (12% concentration H2SO4) and alkaline resistivity (12% concentration Na2SO4) were evaluated for all the mixes of cement mortar and pull off test is carried out.Thriveni M-sand (Plaster sand) is one of the alternative to fine aggregates in mortar. In present investigation compressive, flexure, tensile strength also durability of cement mortar is studied for 1:4 mortar mix with cubes, briquette samples and prisms tested at the age of 7,14 and 28 days. After 28 days of curing durability of all the cement mortar mixes is tested after exposing the samples for one month in acid and alkali solutions, in addition to pull off test on the plaster work is carried out after 28 days of curing in water for all the cement mortar mixes which is considered in this research work.
