DISCOVERY

• Home
• Archive
• Aim & Scope
• For Authors
• Manuscript Submission
• Contact Us

Volume 54, Issue 274, October 2018

About the Cover

The quantity of water present in the concrete matrix controls many fresh and hardened properties of concrete such as workability, compressive strengths, permeability and water tightness, durability and weathering, drying shrinkage and potential for cracking. Thus the limiting and controlling the amount of water present in concrete matrix as well as cement paste is important for both constructability and an extension service life of concrete infrastructures. The successful key for making durable concrete is to limit its ability to transport fluids like water. In order to devise realistic testing methods, that determine the ability of concrete to withstand water penetration requires an understanding of water mobility. In order to build durable oriented and practicable concrete structures, it is needed to be able to accurately predict the water sorptivity, water de-sorption, relationship between water sorptivity-de-sorptivity, water diffusion coefficientsorptivity, water diffusion coefficient-moisture content, and moisture content-time duration within the concrete structures. Therefore, there is a need to quantify the sorptivity-de-sorptivity coefficient in concrete cubes which is of the most important factor in the concrete industries. The present research work is made an attempt to interpret the concrete sorptivity-de-sorptivity coefficient in ordered to characterize the different concrete mixtures design for in case of concrete cubes.

Table of Contents

Previous | Next

ENGINEERING

Characterization of concrete cubes by Sorptivity-de-sorptivity test

Balakrishna MN, Fouad Mohamad, Robert Evans, Rahman MM

The quantity of water present in the concrete matrix controls many fresh and hardened properties of concrete such as workability, compressive strengths, permeability and water tightness, durability and weathering, drying shrinkage and potential for cracking. Thus the limiting and controlling the amount of water present in concrete matrix as well as cement paste is important for both constructability and an extension service life of concrete infrastructures.

Discovery, 2018, 54(274), 368-376

Full Text | PDF

Assessment of sorptivity coefficient in concrete cubes

Balakrishna MN, Fouad Mohamad, Robert Evans, Rahman MM

The quantity of water present in the concrete matrix controls many fresh and hardened properties of concrete such as workability, compressive strengths, permeability and water tightness, durability and weathering, drying shrinkage and potential for cracking.

Discovery, 2018, 54(274), 377-386

Full Text | PDF

CHEMICAL SCIENCE

Performance Evaluation of Batch Reactor for Sodium Benzoate Production

Ukpaka CP

The performance of the Batch Reactor for the production of sodium benzoate from the reaction of sodium hydroxide and benzoic acid were investigated. The performance equation for the operation of batch reactor was developed for the analysis of the reactor’s functional dimensions and parameters.

Discovery, 2018, 54(274), 387-396

Full Text | PDF

SOCIAL SCIENCE

Occupational risk of maid servant at Bhola Sadar sub-district, Bangladesh

Siddeqa M, Islam MT, Biswas AA

Employment of servant for household activities is very common in the urban area of Bangladesh; where a large number of housewives go outside for jobs due to modernization and urbanization. They want to perform their daily work easily by getting help from others e.g. near relatives, maid servant.

Discovery, 2018, 54(274), 397-404

Full Text | PDF

ARTS & HUMANITIES

A research on burial rituals and skeleton remnants in Champapi Cemetery in Kafri Seimareh Strait

Lily Niakan

Central Zagros is considered to be one of the most important cultural realms in Iran’s archaeological studies and different researchers have always found it interesting. Given its geographical location and environmental conditions, different elements have played their roles in shaping the culture of this realm

Discovery, 2018, 54(274), 405-410

Full Text | PDF