Hydrated, mortar strength also increased.Guangcheg long et al 10 gives the effective result of compound combination ultrafine powder such as fly ash content, granulated blast furnace slag and electronic waste as a high-performance concrete it offers a compressive strength up to 250 mpa.Pacheco-torgal et al 11 in the.
Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.
Ground-granulated blast-furnace slag ggbs or ggbfs is obtained by quenching molten iron slag a by-product of iron and steel-making from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground-granulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing.
Mechanical properties of cement mortars modified by hydroxyethyl methyl cellulose, ground granulated blast furnace slag and superplasticiser, including compressive strength, flexural strength, elastic modulus and tensile bond strength, were investigated.
In this study, the effect of glass powder gp and ground granulated blast furnace slag ggbs on the compressive strength of fly ash based geopolymer concrete has been investigated.The mass ratio of fine aggregate fa to coarse aggregate ca.
Particle size effect of ground granulated blast furnace slag ggbs in cement concrete v.Nagendra 1 , c.Is var ied from 10 to 40 at an increment of 10 for concrete to evaluate the compressive strength.The results showed that , for particle of size 20 m , the strength is optimum , which is at 20.Reaction mechanism and its effect.
Effect of blast furnace slag powder on compressive.Slag powder in kg m3 19 38 57 76 95 114 water in kg m3 190 190 6 test results compressive strength test was conducted to evaluate the strength development of cement concrete mix, containing various of blast furnace slag powder at the age of 7, 14, 28 days respectively.
The effect of addition of blast-furnace slag powder and limestone powder on shotcrete binder with calcium aluminate accelerator kang, ong-hee.
Adversely effect of incorporation of either 10 or 20 slag, as individual, in hvfa concrete on both compressive strength and abrasion resistance.The inclusion of 10 slag gave the lowest compressive strength and abrasion resistance at all ages where the abrasion resistance of f60g10 at age of 180 days was still lower than that of f70 at age.
The feasibility of steel slag powder as a combined admixture with ground granulated blast-furnace slag ggbfs in cement based materials was explored.The effects of steel slag powder on the normal consistency water requirement, setting times, compressive strength, and hydration products of cement pastemortar were studied.
Days compressive strength is being near about only 5 on replacement of opc with 15 blast furnace slag powder.Akyuz 8 conducted a study in which he replaced cement by weight partially with ggbs in various percentages from 15 - 110.Compressive strength test was conducted on test specimens which cured at 7, 14, 28,.
Thermal stresses are generated in concrete during the accelerated curing process in precast concrete.These stresses may cause concrete to crack, which would have a negative effect on the general concrete performance.This paper provides the results of the thermal stress analysis of concrete containing 25 replacement of ordinary portland cement opc by ground granulated blast-furnace slag.
Mortar is a cement based paste widely used for constructing masonry structures.It is made by mixing cement and fine aggregate with adequate water cem.
At later age the granulate blast furnace slag is very effective in producing ternary blended cements with similar on higher compressive strength than the cement cem iia 42.5 at 28 and 90 days.For durability, the incorporation of the blast furnace slag into the limestone cement improves remarkably resistance effect to attack by acids and.
Water requirement of normal consistency, setting time, soundness, fluidity, compressive and flexural strength were chosen to evaluate the performance of cement-based with different contents of slag powder.The results show that superfine blast furnace slag powder can be effectively used in cement with high contents.The strength of cement.
Reflect the interactive effect of wastes on the strength development, thrusting sustainable development of concrete.Keywords granular blast furnace slag, fly ash, sustainability, compressive strength, split tensile strength, flexure strength, blending.Sustainable development of concrete, conservation of natural.
Compressive strength of concretes with blast furnace slag.Re-visited state-of-the-art 66 2.Characteristics of the blast furnace slag a cementing byproduct is the secondary or incidental material that is derived from the industrial manufacturing process through a chemical reaction, which possesses the conglomerating.
This article investigated the potential of fly ash fablast furnace slag- bfs- based geopolymer as a novel backfilling material.The effects of naoh concentration and fabfs mass ratio were explored through xrd, ftir, and tg-dtg analyses.The results indicated that the reaction products and strengths of geopolymer depended on the naoh concentration and types of source materials.
This paper presents the effect of nano alumina na on compressive strength and microstructure of cement paste containing high volume blast furnace slag hvbfs contents of 70, 80, and 90 as partial replacement of cement and combined blast furnace slag bfs and class f fly ash fa contents of 70 and 80 as partial replacement of cement.Fa is used at 30 as partial replacement of bfs.
Energy saving in building technology is among the most critical problems in the world.Thus it is a need to develop sustainable alternatives to conventional concrete utilizing more environmental friendly materials.One of the possibilities to work out is the massive usage of industrial wastes like ground granulated blast furnace slag ggbs to turn them to useful environmental friendly and.
Slag, alkali content use to assist it.In evaluation of two slags, it was revealed that on increase in alkali content there is significant gain in compressive strength.Gdoutos and shah 2003 have reported positive performance of blast furnace slag in a blend with cement kiln dust.
Abstract the influence of ferro-nickel slag powder on the sulfate attack resistance of concrete and the corresponding mechanism were investigated by measuring the porosity and charge passed through the concrete and the compressive strength loss below and after the concrete experienced a dry-wet cycle in a sodium sulfate solution and immersion in a high temperature sodium sulfate solution.
Effect of anhydrite and limestone powder on the strength development of blast-furnace slag cement type a could be explained well by a change of degree of hydration of cement compounds and blast-furnace slag, amount of hydration products and capillary pore.
The inuence of blast furnace slag content and steam curing period on compressive strength.6 days 12 days standard 60 80 problems of class c fa.The compressive strength of 6 days and 12 days steam cured specimens are more than that of standard cured specimens in water during 28 days at all fa replacement levels.