Question 1.What Is Surveying? Answer : The profession or work of examining and recording the area and features of a piece of land so as to construct a map, plan, or detailed description of it. Question 2. What Is A Surveyor? Answer...
Showing posts with label Concrete Technology. Show all posts
Showing posts with label Concrete Technology. Show all posts
What Is A Chartered Quantity Surveyor?
What Is A Chartered Quantity Surveyor? Members and Fellows of the RICS entitled to use the designation (and a number of variations such as "Chartered Building Surveyor" or "Chartered Quantity Surveyor" or "Chartered Civil Engineering Surveyor" depending on their field . ...
What Is An Automatic Level?
What Is An Automatic Level? A dumpy level, builder's auto level, leveling instrument, or automatic level is an optical instrument used to establish or verify points in the same horizontal plane. It is used in surveying and building with a vertical staff...
In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete?
In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete? In the method of stitching, it is a normal...
In incremental launching method of bridge construction, what are the measures adopted to enhance sufficient resistance of the superstructure during the launching process?
In incremental launching method of bridge construction, what are the measures adopted to enhance sufficient resistance of the superstructure during the launching process? During the launching process the leading edge of the superstructure is subject to a large hogging moment. In this...
What is “preset” during installation of bridge bearings?
What is “preset” during installation of bridge bearings? “Preset” is a method to reduce the size of upper plates of sliding bearings in order to save the material cost. The normal length of a upper bearing plate should be composed of the...
Why should curing not be done by pounding and polythene sheets?
Why should curing not be done by pounding and polythene sheets?The primary purpose of curing is to reduce the heat loss of concrete that is freshly placed to the atmosphere and in order to reduce the temperature gradient across the cross-section of...
Why should pumping be not used in case of concreting works?
Why should pumping be not used in case of concreting works?During the pumping operation the pump exerted pressure must overcome any friction between the pumping pipes and the concrete, also the weight of the concrete and the pressure head when the concrete...
What reinforcements are used in the process of prestressing?
What reinforcements are used in the process of prestressing?The major types of reinforcements used in prestressing are:> Spalling Reinforcement: The spalling stresses leads to stress behind the loaded area of the anchor blocks. This results in the breaking off of the surface...
Why are steel plates inserted inside bearings in elastomeric bearings?
Why are steel plates inserted inside bearings in elastomeric bearings?In order to make a elastomeric bearing act/ function as a soft spring it should be made to allow it to bulge laterally and also the stiffness compression can be increased by simply...
What do you understand by “preset” during the installation process of bridge bearings?
What do you understand by “preset” during the installation process of bridge bearings?During the installation of bridge bearings the size of the upper plates is reduced to save the material costs. This process is known as preset. Generally the upper bearing plate...
Describe briefly the various methods of concrete curing.
Describe briefly the various methods of concrete curing.Curing is the process of maintaining the moisture and temperature conditions for freshly deployed concrete. This is done for small duration of time to allow the hardening of concrete. The methods that are involved in...
What are the steps involved in the concreting process, explain?
What are the steps involved in the concreting process, explain?The major steps involved in the process of concreting are as follows:1. Batching2. Mixing3. Transporting and placing of concrete4. Compacting.> Batching: The process of measurement of the different materials for the making of...
Types of Formwork (Shuttering) for Concrete Construction:
Types of Formwork (Shuttering) for Concrete Construction: Timber Formwork: Timber for formwork should satisfy the following requirement: It should be well seasoned light in weight easily workable with nails without splitting free from loose knots Timber used for shuttering for exposed concrete...
A good formwork should satisfy the following requirements:
A good form work should satisfy the following requirements: It should be strong enough to withstand all types of dead and live loads. It should be rigidly constructed and efficiently propped and braced both horizontally and vertically, so as to retain its...
Quantity of Cement and Sand Calculation in Mortar
Quantity of Cement and Sand Calculation in Mortar Quantity of cement mortar is required for rate analysis of brickwork and plaster or estimation of masonry work for a building or structure. Cement mortar is used in various proportions, i.e. 1:1, 1:2, 1:3,...
Procedure: Compressive Strength Test of Concrete Cubes
Procedure: Compressive Strength Test of Concrete Cubes For cube test two types of specimens either cubes of 15cm X 15cm X 15cm or 10cm X 10cm x 10cm depending upon the size of aggregate are used. For most of the works cubical...
Compressive Strength Formula
Compressive Strength Formula Compressive strength formula for any material is the load applied at the point of failure to the cross-section area of the face on which load was applied. Compressive Strength = Load / Cross-sectional Area ...
Compressive Strength Definition
Compressive Strength Definition Compressive strength is the ability of material or structure to carry the loads on its surface without any crack or deflection. A material under compression tends to reduce the size, while in tension, size elongates. ...
Advantages and Disadvantages of Prestressed Concrete
Advantages of Prestressed Concrete The major advantages of Prestressed Concrete are: The prestressing of concrete by using high tensile steel improve the efficiency of the materials The prestressing system works for a span greater than 35m. Prestressing enhance shear strength and fatigue...
