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Vincent Boucher

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Tomas Miranda Ocampo

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JHONFABER899651

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Karen Edith

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Nafi Putrawan

Quick Bytes eZine by Seagate - April 2015

Seagate

Cost estimating at schematic design stage as the basis of project evaluation, engineering design, and cost management, plays an important role in project decision under a limited definition of scope and constraints in available information and time, and the presence of uncertainties. The purpose of this study is to compare the performance of cost estimation models of two different hybrid artificial intelligence approaches: regression analysis-adaptive neuro fuzzy inference system (RANFIS) and case based reasoning-genetic algorithm (CBRGA) techniques. The models were developed based on the same 50 low-cost apartment project datasets in Indonesia. Tested on another five testing data, the models were proven to perform very well in term of accuracy. A CBR-GA model was found to be the best performer but suffered from disadvantage of needing 15 cost drivers if compared to only 4 cost drivers required by RANFIS for on-par performance.

Comparison of Cost Estimation Methods using Hybrid Artificial Intelligence on...

IJERA Editor

The Quarry rock dust can be an economic alternative to the river sand. Quarry Rock Dust can be defined as residue, tailing or other non-voluble waste material after the extraction and processing of rocks to form fine particles less than 4.75mm. Usually, Quarry Rock Dust is used in large scale in the highways as a surface finishing material and also used for manufacturing of hollow blocks and lightweight concrete prefabricated Elements. This project presents the feasibility of the usage of Quarry Rock Dust as hundred percent substitutes for Natural Sand in concrete. Design Mix for M30 and M40 has been calculated using IS 10262-2009 for both conventional concrete and quarry dust concrete. Tests were conducted on cubes, cylinders and beams to study the strength of concrete by using Quarry Rock Dust and the results were compared with the Natural Sand Concrete. Cement motor ratios of 1:3 and 1:6 are prepared and observe the percentage of water absorption in both Quarry Rock Dust and Natural sand for plastering.

Comparision of Strength For Concrete With Rock Dust And Natural Sand Concrete...

IJERA Editor

Venice Boardwalk On A Sunday

Lianaavendano

This paper aims to study experimentally, the effect of partial replacement of fine aggregate by steel slag (ss), on the various strength and durability properties of concrete by using the mix designs .the optimum percentage of replacement of fine aggregate by steel slag is found. Workability of concrete gradually decreases, as the percentage of replacement increases which is found using slump test. Compressive strength, tensile strength, flexural strength and durability tests such as acid resistant’s, using HCL,H2SO4 and rapid chloride penetration, are experimentally investigated. The results indicate that for conventional concrete, partial replacement of concrete by steel slag improves the compressive, tensile, flexural strength. The mass loss in cubes after immersion in acids is found to be very low. Deflection in the RCC beams gradually increases, as the load on the beam increases, for the replacement. The degree of fluoride ion penetrability is assessed based on the limits given in ASTM C 1202. The viability of use of steel slag in concrete is found. Waste management is one of the most common and challenging problems in the world. The steel making industry has generated substantially solid waste. Steel slag is a residue obtained in steel making operation. This paper deals with the implementation of steel slag as an effective replacement for sand. Steel slag ,which is consider as the solid waste pollutant, can be used for road construction ,clinker raw materials, filling materials etc. In this work, steel slag used as replacement for sand, which is also major component concrete mixture. This method can be implement for producing hallow blocks, solid blocks, paver blocks, concrete structures etc. Accordingly, advantages can be achieved by using steel slag instead of natural aggregates this will also encourage other researchers to find another field of using steel slag.

Study on Behaviour of Concrete Mix Replaceing Fine Aggregate With Steel Slag ...

IJERA Editor

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Eva María Gil

Public Health Preparedness for Disaster Management

Kattey Kattey

This research work describes the feasibility of using the Rice Husk Ash (RHA) and Sugarcane Bagasse Ash (SCBA) waste in concrete production as a partial replacement of cement. This present work deals with the effect on strength and mechanical properties of concrete using RHA and SCBA instead of cement. The cement has been replaced by rice husk ash, accordingly in the range of 0%, 5%, 10%, 15%, and 20% by weight. Concrete mixtures with RHA, were produced, tested and compared in terms of compressive strengths with the Conventional concrete. These tests were carried out to evaluate the mechanical properties for the test results of 7, 28, 60, 90 days for compressive strengths in normal water and in MgSO4 solution of 1%, 3% and 5%. Also the durability aspect for rice husk ash concrete for sulphate attack was tested. Similarly the above tests were also performed for SCBA. The result indicates that the RHA and SCBA improve concrete durability. Finally the test results for RHA and SCBA were compared. Key words: Rice Husk Ash, Sugarcane Bagasse Ash, Concrete, M35 grade concrete, cubes, cylinders, MgSO4, durability.

Durability Studies on Concrete and Comparison with Partial Replacement of Cem...

IJERA Editor

Studies were carried out to evaluate the effect of storage period and different packaging material on the quality of garlic flakes dried by convective-cum-microwave (CCM) and fluidized-cum-microwave (FCM) hybrid drying. Garlic flakes were packaged and stored in high density polyethylene (HDPE), low density polyethylene (LDPE) and laminated aluminium foil for 3 months under ambient conditions. Samples were investigated to observe for change in rehydration ratio, colour, physiological loss in weight % and overall acceptability. Among the hybrid drying techniques adopted, the garlic flakes developed under optimized condition of fluidized bedcum- microwave was found better in terms of shelf life and quality attributes. The aluminium packaging was adjudged to be the best in retaining the quality of dried garlic flakes up to 3 months of storage. Overall, it can be concluded that the fluidized bed cum microwave dried garlic flakes packed in Aluminium package were the best, and can be stored safely up to 3 months.

Effect of Packaging materials on Quality Parameters of Garlic

IJERA Editor

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Calendar

Pres ruiz 8

Aprendizaje colaborativo karem

Iron mountain Records Management Observing

Quick Bytes eZine by Seagate - April 2015

Comparison of Cost Estimation Methods using Hybrid Artificial Intelligence on...

Comparision of Strength For Concrete With Rock Dust And Natural Sand Concrete...

Venice Boardwalk On A Sunday

Study on Behaviour of Concrete Mix Replaceing Fine Aggregate With Steel Slag ...

Egipto para niños con pictogramas

Public Health Preparedness for Disaster Management

Durability Studies on Concrete and Comparison with Partial Replacement of Cem...

Effect of Packaging materials on Quality Parameters of Garlic

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