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Cement IS 1489: 1991 •  PCC Cementis manufactured by opc clinker with latest amendment it is 15 to 35% • The pozzolonic materials generally used for manufacture of ppc are cacinet clay fly ash • Fly ash is a waste material generated in the thermal power station when powered...

Foundations may be broadly classified under two heads   Shallow Foundations :A foundation is shallow if its depth is equal to or less than its width. Deep Foundations : In case of deep foundations, the depth is equal to or greater than its width. SHALLOW FOUNDATIONS: From...

Introduction: Every building consists of two basic components  1) the super-structure  2) the substructure or foundations. The super-structure is usually the part of the building which is above ground.The substructure or foundations is the lower...

A roof may be defined as the uppermost part of the building, provided as a structural covering, to protect the building from weather (i.e. from rain, sun, wind,etc.). source Inhabitat CONTENTS Introduction Types of roofs Pitched roofs and their sketches Lean...

A stair is a set of steps leading from one floor to the other. It is provided to afford the means of ascent and descent between various floors of a building. source Lynda.com CONTENTS ØTechnical Terms ØRequirements of good stair ØDimension...

CONTENTS Introduction OPC Composition of OPC PP Slag cement Hydration setting time source :tribune.com.pk click here to download pdf of bricks👈👈  Introduction: The natural cement is obtained by burning and crushing the stones containing clay, carbonate of lime...

Q1 A good bricks should not absorbed water by weight more than option 1 ) 10% 2) 20% 3) 25% 4) 30% Q2 King closers are related to option 1 ) doors and windows  2) king post truss 3) queen post truss 4)brick masonry Q3 The texture  of sandstone is  option 1...

Q1 The split tensile strength of M 15 grade concrete when expressed percentage of its compressive strength is  option  1) 10 to 20 %  2)15 to 20 %  3) 20 to 25 %  4) 25 to 30 % function showDiv(toggle){ document.getElementById(toggle).style.display = 'block'; } Show Hello Q2...

Q1 . If 'p' is the standard consistency of cement ,the amount of the water used in conducting the initial setting time test on cement is : option  1) .65 p 2) .85p 3) .6p 4).8p  Q2 . Gypsum is used as an admixture in cement grouts for  option 1)accelerating the setting time  2)retarding the setting time  3)increasing the plasticity 4)reducing the grout shrinkage Q3.Before...

This test is suitable for concrete having high to very high workability . This test consist of a flow table of diameter 76 cm and metallic mould in the  shape of the frustum of the bottom of diameter  25 cm top diameter 17 cm and height 12 cm . credit ::: Self Consolidating...

It is important that no change in the volume of cement take place after it's harding as it significantly affects the durability of the structure in which it is used for the construction . Unsoundness of cement  is due to the presence of lime ,magnesia and sulphur. Unsoundness...

Setting time of the cement is tested in order to check its deterioration due to storage . Setting time of the cement is further referred as initial setting time and final setting time . source :CivilArc Initial Setting Time Test  Initial setting time test is regarded as the...

This test is suitable for the concrete having low to very low workability . This is a good laboratory test to measure indirectly the workability of concrete . In this test consist of a metallic mould in the shape of frustum which placed over the vibrating table . Concrete...

Ultrasonic pulse velocity test identify the quality  of concrete.It is Non Destructive test. The principle of this test is based upon the fact that the velocity in solids .Depends  upon the modulus of elasticity and density of solid. The apparatus of this test consist of a transmitter...

Rebound hammer test is conducted to find out the compressive strength of concrete. Rebound hammer consist of a spring control mass that slides over the plunger in tubular casing .When the hammer is pressed against the concrete surface to be tested ,and retards against the force...