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Effect of partial replacement of cement by ground granulated blast furnace slag and sand by iron ore tailings on properties of concrete august 2018 international journal of advanced technology and .
this paper aims to study the effect of different particle sizes of granulated blast-furnace slag (gbfs) as a partial or full natural fine aggregate substitution in concretes with different water/cement (w/c) ratios. natural sand fine aggregate was substituted with gbfs at ratios ranging from 25% to 100%, by weight. two different particle sizes of gbfs (0.16 and .
An important consideration for decorative applications is that type f fly ash makes concrete that’s darker than concrete made with plain portland cement, and granulated slag cement makes it lighter in color. tom ralston uses 15-20 percent fly ash to replace cement, but he doesn’t do it to get workability benefits.
therefore, cracks were observed when rgs was used as sand replacement in concrete without any precautions to minimize this risk. different materials were used as asr suppressors to mitigate the potential risk of asr, such as: ground granulated blastfurnace slag, metakaolin, pgp, and lithium nitrate (lino 3). the expansion associated with asr .
Hydraulic cement concretes were produced using pozzolans and ground, granulated, blast-furnace slag (slag) to investigate the effect of these materials on durability. the pozzolans used were an astm c 618 class f fly ash with a low lime content and a dry, densified silica fume. the slag was an astm c 989 grade 120 material.
The possibility of utilizing granulated blast furnace slag(gbs) in bendable concrete as a substitute for partial fine aggregate to reduce the environmental problems relating to fine aggregate mining and waste disposal of slag. the use of gbs will also make the bendable concrete more economical to be used in india.
Applications. for years the construction industry has used ground granulated blast furnace slag (ggbfs) as a replacement for ordinary portland concrete cement (opc) to lower curing temperatures. however, modot specifications only allowed low levels of blast furnace slag in concrete mixes.
Effect of simultaneous replacement of cement with ground granulated blast furnace slag (ggbs) and sand with quarry dust in concrete kankatala jagadeep1, siva ramaraju.v2,3, vamsi nagaraju.t4 1,3,4assistant professor, 2professor of civil engineering, srkr engineering college,.
Effect of ground granulated blast slag in concrete replacement of ggbs concrete it gets increases. sand. the plain cement concrete prepared by opc cement.
This study incorporates fine waste glass (gs) as a replacement for natural sand (ns) in fly ash (fa) and/or ground granulated blast furnace slag (ggbs)⁴ based alkali activated mortar (aam).
Fly ash, slag, rise husk, ggbs are the things which are usedfor replacement. this concrete prepared is known as geopolymer concrete. gpc is considered now complete replacement of cement. a lot of studies has been carried out by researcher that use of ggbs in geopolymer concrete has improved the strength properties but its excess amount may .
Ggbs strength decrease compared with control of concrete. a 30% of replacement gives 13.13%in compressive strength gives 6.97% for 28 days . cement is use as a binder material in conventional concrete but it involves heat of hydration .which leads to .
In recent years, the use of fly ash (fa) and ground granulated blast furnace slag (ggbs) as cement replacement materials as well as foundry sand (fs) and recycled fine aggregate (rfa) as sand replacement materials has provided an attractive avenue toward a green construction material for decreasing the effect of concrete and construction and demolition (c&d) waste .
according to the conversation, “the bze report calculates that 50% of the conventional concrete used in construction can be replaced with another kind, called geopolymer concrete. this contains cement made from other products .
Dune sand and ground granulated blast furnace can be used as high volume cement replacement materials in autoclave concrete production (alawad et al. 2015). however, the effect of autoclave conditions on microstructure of blended cement mixtures containing ground dune sand and slag have not been studied in depth. this study aimed to investigate.
Ground granulated blast furnace slag (ggbs) in china. ggbs concrete is characterized by high strength, lower heat of hydration, and resistance to chemical corrosion. they used ggbfs in high-strength hpc with different fineness level and through the result table we can see effects on workability and strength of concrete. it is characterized by .
cubes of concrete were tested to show the effect of the substituting part of sand by granulated slag (30%, 50%) and the total substitution on compressive strength. test results were carried out at 3, 7, 28, 60 days and 5 months of hard.
it is recommended that 40 wt% of copper slag can be used as replacement of sand in order to obtain hpc with good properties.6. it should be noted that further research work is needed to explore the effect of copper slag as fine aggregates on the properties of concrete with different cement types, silica fume sources and the degree of fines.
heat of hydration is significantly affected by different cement-replacement materials such as microsilica, fly ash, and ground granulated blast furnace slag (ggbs) (5,6). the effects of these materials on heat of hydration is significant.
Ground granulated blast-furnace slag, more commonly referred to as slag or slag cement, is a by-product of steel production. slag is primarily composed of cao, sio 2, aluminum oxide (al 2 o 3 ), and magnesium oxide (mgo). when used as part of a portland cement concrete, slag reacts with both the water (latent hydraulic reaction) and the .
Effects of ground granulated blast furnace slag in portland cement concrete (pcc)-wisconsin highway research program whrp 07-01 irene k. labarca, ryan d. foley, steven m. cramer department of civil and environmental engineering university of wisconsin-madison january 2007 expanded study spr # 0092-05-01.
there are two major uses of ground granulated blast furnace slag, in the production of high quality-improved slag cement, such as portland blast furnace cement (pbfc) and high slag blast furnace cement (hsbfc). in such cements ggbs content ranges typically from 30 to 70%. in the production of ready-mixed concrete or site-batched durable concrete.
Granulated slag is substituted for raw sand, partly or totally. ratios of 25%, 50%, 75% and 100% by weight of sand are used. the effects of granulated lead-zinc slag (glzs) as sand replacement material on the compressive strength and gamma radiation attenuation properties of concrete are investigated and analyzed.
this paper discusses the synergetic effect of ground granulated blast-furnace slag and hooked-end steel fibers on the fresh, mechanical, and microstructural properties of steel fiber-reinforced self-compacting concrete containing fly ash. a total of 12 mixtures were prepared.
This study is a part of an on-going research studying the effect of blast furnace slag as a binder and filler replacement on the properties of fresh and hardened foam concrete. a mix having the density of 1300kg/m3 with a proportion of (1 cement:2 sand), w/c ratio of 0.45, a commercially available additive (sp-1), class f fly ash and a unprocessed blast furnace slag was used.
This paper presents the results of using ground dune sand (gds) and ground granulated blast furnace slag (slag) as high volume cement replacement materials. in this study, plain and four blended mixtures were fabricated and cured under normal and autoclave conditions. for the blended mixtures, 40% gds by weight of the total binder materials and different percentages .
this paper investigates the effects of using ground granulated blast furnace slag (ggbfs), lead slag (ls) and zinc slag (zs) as replacement for sand on the strength of concrete. compressive strength, flexural strength, water absorption and density were tested at 14, 28 and 56 days.
Effect of partial replacement of sand by iron ore tailing (iot) and cement by ground granulated blast furnace slag (ggbfs) on the compressive strength of concrete august 2014 project: composites.
The ground granulated blast furnace slag (ggbfs) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. this material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree celsius. the process is carried out in a blast furnace.
Sand can be partially replaced by marble slurry dust in making cement concrete mixes. optimum quantity of sand that can be replaced by marble slurry dust is around 40 per cent. replacement of sand by marble dust results in increased water requirement for the desired workability of .
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