Cement, Energy and Environment

the Code. Even though the essential contents of the departmental code should be aimed only for the design and construction of the buildings, there are certain planning requirements which should also be included in these codes, which are covered in Parts 3 and 4; depending upon the setup in each department, information from the above parts should be included in their regulations. In the case of other constructional agencies like public sector projects the whole Could would be applicable to them and implementation of the complete Code would result in substantial economies along with safety. Similarly the private construction agencies should make full use of the provisions of the Code . Publication The Code has been published in one full volume containing all the Parts and Sections. Besides, five separate groups to cater largely to the interesUagency dealing with different aspects of building activity have also been published as follows: However, while using a particular group, it may be borne in mind that there are other areas of information available in other groups which would require the attention of the same agency even if not directly connected with that phase of work. For example, while Group 4 and Group 5 also draw the attention from the point of view of preplanning in respect of building and plumbing services. Web: www.bis.org.in Courtesy: Bureau of Indian Standard .. .., ~,., '1 I' I h~t! ns us$ Full volume (Parts 0 to 10 all sections included) 11310 2260 Group 1 (Parts 0, 2, 3, 4, 5 and Part 10 Sections 1& 3030 625 2) For Planning Building Development work Group 2 ( Part 0 and Part 6 Sections 1 to 7) For 4390 875 Structural Design Group 3 ( Part 0 and Part 7) For 1080 215 Constructional aspects Group 4 ( Part 0 and Part 8 Sections 1 to 5) For 2830 585 Building Services Group 5 ( Part 0 and Part 9 Sections 1& 2) For 1380 290 Plumbing Services WHAT'S IN A PICTURE? This article first appeared in International Cement Review in July 2010 and is reprintind with kind permission of Tradeship Publication Ltd, United Kingdom. Email: info@CemNet.com Website: www.CemNet.com Arthur Harrisson, UK Each cubic millimeter of solid clinker can easily contain over 8000 crystals, frequently very many more. By slicing open a clinker nodule before it is ground up to make cement and polishing the surface to a very high degree we are able to see the crystals under the microscope. By staining or etching the surface we can I ·.; . , ; l . .. ,;( .. l • ·" . .. ~ ~, •• •· ,..,. ~ ... . ' ' .. ..... • I .. ' • !d ·1 ~- ... ' "' , ' ..... make the different types of crystal show up as different colours and so have a slice of the internal structure of the clinker, frozen as it left the burning zone at about 145o·c and fell into the cooler. A common approach to microscopic examination is to concentrate on the collection of data and then examine the results to form conclusions based on numbers alone. While data collection is vital, another approach is to interpret as the sample is examined, forming conclusions and then adapting as more information is gathered. A considerable amount can be gleaned from the clinker microstructure about how the raw feed was prepared, how the temperature profile in the kiln affected the crystal growth, how . ,. l '-. . ' .. : -- '-? ~ \ ...... -V' , , r ""' • #- \.4 • "' ·.J~- li ".' ~~ ~ • "' . t - 'l .,~ ~- , ;1' ... ... ' • ~~ .. ,. .. ...; -·- ~ ... \_' ..,. ~ - ' . -~ ~- - • m:~~~ · ~ '\.{~· , -f ~; 35