BARRY-WEHMILLER INTERNATIONAL PVT LTD HIRE CIVIL AND STRUCTURAL ENGINEER

Barry-Wehmiller International Pvt Ltd is looking to hire Civil and Structural Engineer, for a project in Chennai, with strong experience in engineering and design of steel and Reinforced Cement Concrete (RCC).

The candidate must be a Civil / structural engineerand must have a flair to work in design of steel and RCC. Knowledge of Oil and gas industry, skid structures, pipe rack structures, offshore module, STAAD.Pro. Must have worked independently in skid structure design and analysis, preparation of foundation designs for skids, equipment and piping supports.

To apply visit: https://bit.ly/2AR4HrR

Factor affecting properties of cement in construction field

FACTORS AFFECTING PROPERTIES OF CONCRETE:

The factors which affect the properties of concrete (workability, bond strength, tensile strength, creep, shrinkage, bleeding, segregation, etc) are described below.


1. WATER-CEMENT RATIO:

Strength elasticity, durability, and impermeability of concrete are increased with the decrease in water-cement ratio, provided the concrete is workable. Shrinkage is increased with greater w/c ratio.

2. CEMENT CONTENT:

With increases in cement content, w/c ratio decreased and consequently, strength, elasticity, durability, and permeability is increased. More cement improves workability but it also increases shrinkage which is undesirable.

3. TEMPERATURE:

The rate of setting and hardening of concrete is high at higher temperature. If the temperature of concrete falls below 0°C, free water in concrete turns into ice crystals and since ice has greater volume than the same quantity of water, the concrete is completely disrupted.

Such concrete on thawing will have no strength. If the temperature is more than the freezing temperature, cool concreting gives better ultimate strength, durability and less shrinkage.

4. AGE OF CONCRETE:

The strength of concrete goes on increasing with age, though the rate of increase becomes very slow with the passage of time. The following table gives some ides of strength development with age:

Age                         Strength in percentage      Ordinary cementRapid hardening cement7 days35%65%28 days60%90%3 months85%95%1 year100%100%

5. AGGREGATE:

Size, shape, and grading of aggregates, control concrete properties to a large extent. Rounded aggregates give better workability than flaky and angular aggregates. Larger the size of the aggregate, greater will be the strength, provided concrete mix is workable. Property graded aggregates give better workability and strength.

6. CURING:

Curing is the process of keeping the setting concrete damp so that complete hydration of cement is brought about. Besides strength the curing affects following qualities:

a) It improves wear-resisting and weather resisting qualities.

b) It increases impermeability and durability.

c) It reduces shrinkage.

NCCL company hiring civil and mechanical engineer in tender project

Nagarjuna construction company hirring civil and mechanical engineer for tender project.. .

Job Description

• Prepare tender Assessment sheets considering the contractual aspects (GCC, SCC, and PCC).
• Attending Client / Consultant meetings (Pre-bid meetings) and collect market intelligence to best fit in the competitive market and analyze and prepare the competitors list.
• Evaluating the technical qualification and prepare proposals technical schedules (RFQ, RFP, EPC Contracts item rate) discussing with Business Development managers and internal departments.
• Obtaining Quotations for sub-contractors and materials insure that the company has accurate cost information to the estimation department.
• Compile the technical and financial proposal and insure the timely submission.
• Prepare competitive list of bidders submitted the tender and their discussion with client for qualified bidders

Apply here: https://bit.ly/2Or7Q4b