Effect of Partial Replacement of Cement by Mixture of Glass Powder and Silica Fume Upon Concrete Strength Engr. Abdul Ghayoor khan, Dr. Bazid khan Abstract—All over the world the most common consuming construction material is concrete. It is well know that concrete is the combination of cement, aggregates and water. The
Waste glass has potential for use in building materials, for example, as an aggregate replacement, a filler in concrete, or a cement replacement. Finely ground glass powder (particle size of less ...
Influence of Cement Replacement with Fly Ash and Ground Sand with Different Fineness on Alkali-Silica Reaction of Mortar ... 20% blended with limestone powder can mitigate ASR expansion. Saha et ...
cement increases upon addition of silica fume to the concrete. The increase in flexural strength was observed upto 15% re-placement of cement by silica fume. The gain in split tensile strength was significant upto 10 % silica fume. The optimum compressive and flexural strength was obtained in the range of 10-15% replacement of cement by silica.
concrete by varying the granite powder as a replacement of sand in the concrete that have originated from granite crushed unites along with admixtures such as silica fume, fly ash, ground granulated blast-furnace slag and superplasticiser as a partial replacement of cement.
effects of using dolomite powder as a partial replacement material to cement. The dolomite powder was replaced at 0%, 5%, 10%, 15%, 20% and 25% with cement of M20 grade. The compressive, split tensile and flexural strengths of concrete with dolomite powder were compared with those of the reference specimens.
without silica fume. Concrete containing silica fume shows substantial reduced bleeding. Additionally, silica fume reduces bleeding by physically blocking the pores in the fresh con-crete. Use of silica fume does not signi cantly change the unit weight of concrete. 2.4 Effect of Silica Fume on the Hardened Properties of Cement/Mortar/Concrete
This investigation looks at the partial replacement of cement by waste glass powder of size 150microns and 300microns s in the concrete. Glass powder is replaced for both 150microns and 300microns for every 10%, 20% and 30%. These results are compared with nominal cement concrete (Zero replacement of waste glass powder).
ground into powder2 Figure 4. Compressive strength after 7 days of curing Findings • Availability of clayey soil in State College, Pennsylvania was confirmed • Compressive strength decreased by 7% with the partial replacement of • cement with waste brick powder • XRD analysis of waste brick powder revealed silica, alumina, iron oxide,
C305. The percentages of cement replacement by weight with (LNP) powder were 10%, 20%, 30% and 40%, the percentages of partial replacement of sand by volume with (LNP) were 10%, 20%, 30% and 40% and the percentages of cement replacement by weight with silica fume were 0%, 5% and 10%. Figure- 3 shows part of specimens after molding and before ...
Silica Sand, Ground Silica and Fine Ground Silica Page 2 of 10 Component CAS No. Percent Crystalline Silica (quartz) 1 95-99.9 Inhalation: First aid is not generally required. If irritation develops from breathing dust, move the person from the overexposure and seek medical attention if needed. Skin contact: First aid is not required
As reviewed above, the properties of concrete with glass powder as cement replacement in higher propor-tion remains an unexplored area. Therefore, this re-search aims to study the pozzolanic reaction of GP up to 60% cement replacement and its influence on the micro-structure of cement paste, which has not been investi-gated before.
In contrast, for a Class C fly ash that significantly retards cement hydration at a 40% cement replacement level by mass, while 5% of a 4.4 μm limestone powder accelerated/amplified early-age hydration and decreased setting times markedly, 5% of a 2.7 μm silica powder actually increased the length of the dormant period and further delayed ...
concrete design since the early 1900s (Slag Cement Association, 2002). Slag cement is a byproduct of the iron-making process and is composed primarily of silica and calcium. In fine particle form, slag cement displays cementitious qualities similar to those of ordinary portland cement (OPC). Slag cement can therefore be substituted for OPC in a
4. Optimum replacement level of cement with silica sand is 6%. 5. At 12% replacement level cost of concrete is about 5% less than that of conventional concrete. VI. REFRENCES [1] Mithaq A.Louis, "Strength of reactive silica sand powder concrete made of local powders", Qadisiya, Journal for Engg. Science, vol.3, 2010. [2]
Glass is principally composed of silica. Use of milled (ground) waste glass in concrete as partial replacement of cement could be an important step toward development of sustainable (environmentally ... (ACI, 2009). The glass powder replacement in cement was varied (0–25%). Mix proportion of concrete is shown,
replacement of cement using silica fume is done up to 20% and replacement of fine aggregate using glass powder is done up to 40% also silica fume and glass powder are replaced by 15% and 20%.compressive strength for replaced materials and conventional concrete is …
this problem many material like fly ash, GGBS, silica fume, wollastonite, waste glass powder are used as a partial replacement of cement. Partially replacing cement with wollastonite and Ground Granulated Blast Furnace Slag helps in reducing environmental pollution. Wollastonite is naturally occurring mineral and is
Download full-text PDF Read ... Glass is principally composed of silica. Use of milled (ground) waste glass in concrete as partial replacement …
review. Partial replacement of cement by Ground Granulated Blast Furnace Slag (GGBS) and addition of Carbon Fiber to the concrete to find their properties, strength and behavior. 3. MATERIALS TO BE USED 3.1 CEMENT Cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together.
WITH REPLACEMENT OF CEMENT BY SILICA FUME AND METAKAOLIN S. GNANA VENKATESH1, E.MALARVIZHI2 1 Assistant Professor, ... SCC can be produced with replacement of Fly ash and Dolomite powder. Mix with 3: 1 ratio of Fly ash and Dolomite powder seem …
Determine the fresh state and hardened state properties of M40 grade concrete with silica fume, GGBS and bentonite clay as partial replacement of cement. Objectives. This study is focusing on partial replacement of cement with silica fume, …
then ground to a fine powder (Figs. 3-10, 3-11, and 3-12); they include calcined clay, calcined shale, and metakaolin. ground granulated blast furnace slag and ACI 233 (1995) provides an extensive review of slag. SILICA FUME Silica fume, also referred to as microsilica or condensed silica fume, is a byproduct material that is used as a poz-
For all days, the compressive strength of cement mortar was observed to decrease severely at early ages with the increased replacement levels of GGBS in cement. Silica Fume. Silica fume is an ultrafine powder collected as a by-product of silicon and ferrosilicon alloy production. The raw materials are coal, quartz, and woodchips.
silica fines high potential as cement replacement and as concrete additive is nano silica 1,3 Nano silica produced in method is a very fine powder consisting of spherical particles or microsphere with main diameter 150nm with high specific surface area 5 Atmosphere level of co
Cement replacement materials are special types of naturally occurring materials or ... mostly of silica, alumina and iron (Table 10.1), fly ash is a pozzolan--a substance containing ... ground to cement fineness, hydrates like portland cement.
The binary or ternary blends of 20% replacement of glass powder, slag, or silica fume can be utilized for ASR mitigation without compromising other concrete properties.
Cement replacement materials are necessary, including coal fly ash, ground granulated blastfurnace slag, silica fume, ground glass natural pozzolans or calcined clay (eg, metakaolin). Recycled and waste materials can be used to replace aggregates, materials such as recycled glass, brick and concrete and incineration bottom ash.
Ceramic powder, silica fume, fly ash, Ground Granulated Blast furnace Slag and other suitable materials are employed in replacing cement in concrete. The main aim of this study is to analyze the effect of using MICRO-SILICA in the replacement of cement employed in concrete. Cement is replaced using Micro- silica, for different percentages and ...
fly ash replacing cement by 0, 20, and %by weight of cement, respectively, for example, FA10, FA20 and FA30. ˙e waste glass powder cement mortar is shown in Fig.˜ 1. 2.3 Test Methods ˙e experiments were carried out according to ASTM (tandard test method for determining the poten - tial alk–silica reactivity of combinations of cementi-
