TEST FOR MORTAR part-3

-

Test for mortar:-

  • Adhesiveness to Building Units:-

Mortar is  placed to join them so as to form a horizontal joint. If size of bricks is 19cm x 90cm x 90cm, a horizontal joint of 9cm x 9cm=81cm. square will be formed. Ultimate adhesive strength of mortar  per cm square area is obtained by dividing maximum load with 81cm square area.

  • Crushing strength:-

Brick masonry or stone masonry laid in mortar to be tested are crushed in connection machine. The load at which the masonry crushes gives the crushing strength.

  • Tensile strength:-

The briquettes are tested in a tention testing machine. Cross- Sectional area of central portion is 38mm x 38mm or 1444 mm square or 14.44cm square.

Comments

Post a Comment

Popular posts from this blog

Top 10 Important Cement.

-
Image
Please note that top 10 list of cement brands Is made according to the cement Production Capacity of these companies in the  finanacial years 2019.Hance these companies are also 10 top largest cement Production in india 2020.   Table of contents.          (1) Ultratech Cement    (2)  Shree Cemen (3) ACC Cement        (4) Ambuja Cement      (5) Ramco Cement  (6)India Cement (7)JSW Cement         (8)Wonder Cement       (9) Binani Cement          (10) mycem Cement
Read more

What is Bolted joints.

-
Image
Bolted Joints:- Bolts may be used in place of rivets for structure not subjected to vibration. The following types of bolts are used in structure. Unfinished bolts:- These types of bolts are also called as ordinary, Common, rough or black bolts. These are commonly used in light structure subjected primarily to static loads and for secondary members like purlins, bracings etc. These bolts are made from low carbon steel (circular rods) by forging process. High strength bolts:- High strength bolts are fabricated from bars if medium carbon heat treated steel and from the alloy steel. There high strength is obtained from the quenching process followed by the tempering process or by the allowing steel.
Read more

CLASSIFICATION OF LIMES

-
Image
Classification of Limes:-               (1) Fat Lime              (2) Hydraulic Lime              (3) Poor Lime or Lean Lime ( 1) Fat Lime:- This lime is also known as the high calcium lime.pure lime, rich lime or white lime. It is popularly known as the fat lime as it slakes vigorously and its volume is increased to about 2-2.5 times the volume that of quick lime. The impurities in such limestone is less than 5%. (2) Hydraulic Lime:- This lime is also known as the water lime as it sets  under water. It contains clay and some amount of ferrous oxide. The hydraulic lime can set under water in thik walls where there is  no free calculation of air. (3) Poor Lime:- This Lime is also known as the impure or  lime. It contains more than 30% of clay . It slake very slowly. Lemon Limes
Read more