Classification of Timber
Various bases are considered for the classification of timbers. The following are the important basis: (i) Mode of growth (ii) […]
Various bases are considered for the classification of timbers. The following are the important basis: (i) Mode of growth (ii) […]
Preservation of timber means protecting timber from fungi and insects attack so that its life is increased. Timber is to
Preservation of Timber Defects in Timber Seasoning of Timber Properties of Timber Classification of Timber Timber Timber is used for
(i) Chemical properties Portland cement consists of the following chemical compounds: (a) Tricalcium silicate 3 CaO.SiO2 (C3S) 40% (b) Dicalcium
(a) Soundness Test: It is conducted by sieve analysis. 100 gms of cement is taken and sieved through IS sieve No.
Cement is used widely for the construction of various structures. Some of them are listed below: (i) Cement slurry is
Properties of good timbers are: Colour: It should be uniform. Odour: It should be pleasant when cut freshly. Soundness: A
This is a process by which moisture content in a freshly cut tree is reduced to a suitable level. By
Seasoning of Timber | Natural, Artificial seasoning Read Post »
Various defects which are likely to occur in timber may be grouped into the following three: (i) Due to natural
The following are the required properties of good bricks: (i) Colour: Colour should be uniform and bright. (ii) Shape: Bricks should have