Site Execution

  ·          Building mortar is define as a mixture of cement, sand and water. ·          Mortar is similar to concrete but it does not contain coarse aggregate. ·          Mortar are used for filing joints as a binder in stone and brick masonry   Bulking of sand ·          In the case of aggregates there is another effect of the presence of moisture viz. bulking which is an increase in the volume of a given sand particle apart. for a moisture content of about 5-8 % depending upon the   increase of volume may be as much as 20-40% depending upon the grading of sand . ·          Finer the materials more will be the increase in volume for a given moisture content. Classification of mortars ·          Mortars are classified on the basis of the following. (i)             Bulk density (ii)           Kind of binding materials (iii)          Naturals of application (iv)          Special mortars Properties of a good mortar The important properties of good mortar mix are mobility, place and wate

  The volume of one 50 kg bag of cement is 34.5 litres   About 19 litres (38%) of water is required to hydrate 50 kg cement in sealed container.   The ordinary Portland cement when tested for its compressive strength at 28 days   according to the method describe by the standard specification, yields a minimum compressive strength of 43N/mm2 is called 43 grade  cement . Too fine cement is susceptible to air set and deteriorates earlier.   The setting time of cement can be controlled by varying the quantity of gypsum in cement. Sometime with the addition of water to cement, a premature set occurs within 5 minutes. This is called false set an is due to  the presence of anhydrous gypsum which is formed due to grinding of gypsum with too hot clinker .this is not to be worried .continuous mixing aggregates , cement and water will break the false set without  harming any property of the concrete .  The ability of cement to maintain a constant volume is known as soundness of cement. The abilit

  Brick:- Basically brick is a type of block which is used for the construction of wall and other building components. Classification of bricks - The brick can broadly be divided into two categories ·          1. Unburnt brick :         T he unburnt or sun dried bricks are dried  with the help of heat received from sun after the        process of moulding .These bricks can only be used in the construction of temporary and     cheap structure.  Such bricks should not be used at places exposed to heavy rains. ·            ·          2 . Burnt bricks- These are classified in four categories. ·         (i) First class Bricks:-   These bricks are table – moulded and of standard shape and they are burnt in kilns.   The surfaces and edges of the brick are Sharp Square smooth and straight.   First class bricks have all qualities of good bricks.   These bricks are used for superior work of permanent nature.    (ii)  Second class Bricks T hese bricks are ground moulded and t

Here I am going to discuss how to prepare a method statement for construction activities step by step: Content :- In this with we write the content which included in the document serial wise. PURPOSE SCOPE RESPONSIBILITY CONTROLLING SPECIFICATION MATERIAL TOOLS & TACKLES PROCEDURE INSPECTION DOCUMENTATION 1. PURPOSE:- In this we write the purpose of the procedure which includes all activities. 2. SCOPE:- In this we write about the scope of the work, which includes activity name and name of part of construction work. 3. RESPONSIBILITY:- We include the persons who are responsible for the the activity such as project manager, engineer, supervisor. 4. CONTROLLING  SPECIFICATION:- In section we include which standards and specification are used for the activity. 5. MATERIAL:- In this we include the the all kind of materials used for the work with name of material and brand. 6. TOOLS & TACKLES:- In this we include name of the tools and tackles used for the work or activi

  Here is the list of some important IS code which used for design of building. 1- IS 456:200   (CODE OF PRACTICE FOR PLAIN AND REINFORCED CONCRETE):- In this IS code we study for PCC (plain cement concrete) & RCC (reinforced cement concrete) Download Link 2- IS 1343 - 1980   ( CODE OF PRACTICE FOR PRESTRESSED CONCRETE:- In this IS code we study about prestressed concrete. Download Link 3- IS 875-1987 (CODE OF PRACTICE FOR DESIGN LOADS):- In these IS codes we find the standard values of loads of different kind of materials, structures, & components of buildings etc. PART 1 PART 2 PART 3 4- IS 800-2007 ( CODE OF PRACTICE FOR GENERAL CONSTRUCTION IN STEEL):- In this IS codes we get the details about the steel structures their joint connections etc.  Download Link 5- IS 1893:1984  (Criteria for Earthquake Resistant Design of Structures) (Part 1 : General provisions and Buildings):- In this IS codes we learn about the analysis of earthquake resistance structures how it's wor

A bridge  is a man made structure built to avoid physical obstacles without closing the way underneath such as a valley,  body of water, or road, for the purpose of providing passage over the obstacle, usually something that can be detrimental to cross otherwise. Types of Bridges:-    There are basically five types of Bridges. 1:- Suspension Bridge 2:- Cable Stayed Bridge 3:- Beam Bridge 4:- Truss Bridge 5:- Arch Bridge   1:- Suspension Bridge:-  A suspension bridge is one of the most popular bridge designs. It features a cable support system that distributes the weight of the bridge deck between the two towers. The tension forces in the cables are converted to compression forces in the piers that then extends all the way to the ground. 2:- Cable Stayed Bridge:- Basically cable stayed bridge is a bridge that consist of one or more than one pillar with cables supporting roadbed. 3:- Beam Bridge:-   A beam bridge consists of a horizontal slab supported at each end