Although blast furnace slag cement has many advantages over ordinary portland cement. Since both slag cement and portland cement are delivered in the same type of container truck, care should be taken to distinguish one material from the other in storage and handling. The physical properties are similar to OPC. You will receive a link and will create a new password via email. It can be made at any portland cement manufacturing plant. The response was overwhelming and a selection of the suggestions is seen overleaf. Please enter your email address. It is very fine cement hence very good when used for plastering works. The initial strength obtained is less, which effect the de-shuttering of supports early. Materials Ordinary Portland Cement: Dangote brand of ordinary Portland cement with properties conforming to BS 12 was used in this study. Strength gain is slow. Portland slag cement is the most suitable cement for concrete paths, mass concrete uses, structures and bases, pre-cast concrete, concrete open to sea water and oceanic use. Although much research was carried out on utilizing FNS as a binder, its advantages and disadvantages are still not clear. Used in pre-stressed and post-tensioned concrete members. In cold weather condition, the low heat of hydration of slag cement coupled with moderately low … II.MATERIALS AND METHOD A. Read More : Applications of Different Cement Types for Concrete Construction. Concrete will either expand or contract as a reaction to temperature changes (as do all materials, to some extent). 2. What are the benefits of using slag cement? The specification of Slag Cement is given in the Indian Standard Code IS Code 455:1989, and it seems to be the colour of blackish grey. Become VIP Member. But in areas where natural/river sand is not available for construction, cement mortar plastering would require a 6 mm gypsum layer to finish it making cement plaster more costly. As the initial setting time is high, this … A pozzolanic material can be a natural or artificial which contains silica and aluminous in a reactive form. It improves durability & resilience. Pozzolanic materials generally used for manufacture of Portland cement are calcinated clay (lS: 1489 part 2 of 1991) or fly ash (IS: 1489 part 1 of 1991) Composition and manufacturing of pozzolana Portland cement (PPC): It has no cementing or binding properties but as a microscopically grounded, it reacts with calcium hydroxide to form compounds with cement properties. PPC used in pre-stressed and post-tensioned concrete members. What is pozzolana or pozzolanic material? Slag cement is commonly found in ready-mixed concrete, precast concrete, masonry, soil cement and high temperature resistant building products. Using slag cement to replace a portion of Portland cement in a concrete mixture is an efficient way to make concrete more consistent. In the second method blast furnace slag is separately ground mix with cement. To properly use FNS as a cement replacement, this paper summarizes the following. Fine particles of clay and limestone are fed into the air-swept ball mills in desired proportions as per requirement and mixed very well before it is sent to silos for storing. It is observed that the composition of 7.5% RHA + 22.5% GGBS+ 60% of quarry sand gives good strength results. LH,Email