محطة طحن مسحوق فائقة الدقة في الهند
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Use of Blast Furnace Slag Aggregate in Concrete design a concrete mix for a particular strength and durability Following are the some methods available for concrete design mix As IS method more common and precise therefore for this 75 1 0 2 29 0 9 3 2 53 0 45 M 4 IJSER
copper slag ranging from 0 for the control mix to 75 were considered The cement mortar with mix ratio cement sand of 1 3 and 1 5 was prepared Figure 1 shows the experimental setup for static test on stack bon ded masonry units Stack bonded masonry units were prepared using five numbers of
Concrete mix ratio is a vital topic in concrete mix design The four basic ingredients for making concrete are Portland cement sand aggregate stone and water The strength of concrete mixture depends on the ratio in which these four ingredients are mixed
GGBFS 75 kg min 75 kg min 150 kg min Preliminary mixes were proven to exhibit excessive compressive strengths compared to the WA513 specification and subsequently the trialled and approved mix comprised 75kg GP cement and 75kg GGBFS In total 74 loads of lean mix concrete were supplied with a mean 7 day strength of 9 5MPa
One mix made by ordinary Portland cement was also considered for comparison of the results In general AASC outperformed the Portland cement concrete In addition the results showed that the alkaline solution/slag ratios of 0 45 are the optimum value for AASC mixes from the durability and permeability point of
Concrete mix estimation Our mix on site concrete calculation is based on batching by volume Large construction sites employ batching by weight which is more exact You can also estimate the quantity of sand and gravel required by weight Simply multiply the volumetric quantity of sand and gravel with 1400 kg/m 3 bulk density of sand and
Slag cement is often referred to as ground granulated blast furnace slag GGBFS As requested in 2001 by slag cement manufacturers and the Slag Cement Association the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement ACI Committee 233 2004
5 2 Mix Proportions The mix proportions were made for a control mix of slump 4 ± 1 in 100 ± 25 mm for M20 M30 M40 grade of concrete for w/c ratio of 0 55 0 45 0 40 re spectively by using IS method of mix design shown in Table 2 Table 3 is providing mix proportions details for con trol mixes without replacements
As the water to cement ratio increases the strength of a concrete mix decreasesncrete mix decreases As the surface area of the aggregate increases the more water will be needed to maintain a given slump Coarser Surface Texture Particle Shape Particle Size Distribution As the air content increas es the strength of
A concrete mix ratio is usually expressed by a set of numbers separated by colons as is the case with a 1 2 3 ratio This tells the mixer that they need to add 1 part cement powder 2 parts sand and 3 parts aggregate in order to create the desired concrete consistency Water is not included in these ratios though because it can vary more
In concrete slag cement may be proportioned from 20 to 80 percent depending on the application It is substituted for portland cement on a one to one basis by mass
natural sand in mortar In this work cement mortar mix 1 3 was selected for 0 25 50 75 and 100 replacements of natural sand with GBFS for constant w/c ratio of 0 5 and also work has been carried out for 100 replace ments of natural sand with GBFS for w/c ratios of 0 4 and 0 6 Mortar flow behavior and its compressive strength are
Effect of ground granulated blast furnace slag and fly ash ratio and the curing conditions on the mechanical properties of geopolymer concrete Structural Concrete 2021 Manvendra Verma Nirendra Dev Manvendra Verma Nirendra Dev Download PDF
What is Slag Cement Slag cement is a hydraulic cement formed when granulated blast furnace slag GGBFS is ground to suitable fineness and is used to replace a portion of portland cement It is a recovered industrial by product of an iron blast furnace Molten slag diverted from the iron blast furnace is rapidly chilled producing glassy
hand using slag only as a binder was effective enough to produce AAC with high compressive strength and desirable workability at ambient curing conditions and suitable for in situ construction 2 The AAC mix with 100 slag 9 Na 2 O Ms of 1 0 and W/B ratio of 0 45 achieved the highest f28 of 43 0
USE OF COPPER SLAG IN CONCRETE AND CEMENT MORTAR AS REPLACEMENT OF SAND K Bhanu Prakash Reddy1 K Tanuja2 N Vasu Deva Naidu3 1M Tech Structural Engineering KMM Institute of Technology and Science Tirupati AP 2K Tanuja Dept of Civil Engineering Assistant Professor KMM Institute of Technology and Science Tirupati AP
Geopolymer concrete GPC is an innovative and eco friendly construction material In the experimental investigation examine the effect of ground granulated blast furnace slag GGBFS in the GPC by replacing the fly ash in the various ratios in the different mix design
The basis of the mix designs used in this study is a standard concrete mix being used in the round robin testing programme of RILEM Technical Committee 247 DTA 1 ASCEM 2014 which was designed to target a relatively low activator content for making structural concrete from alkali activated slag In the RILEM TC 247 DTA mix design oven dried
Slag Cement in Slab Concrete Mix We are EOR for a large shopping center and received a mix design for the slab containing up to 50 GGBF slag C595 Ty IS w max 50 C989 G120 GGBF slag We specified Type II cement with max 20 flyash that s just what is more commonly available as far as I can tell but due to the location of the mix plant
Slag cement is often referred to as ground granulated blast furnace slag GGBFS As requested in 2001 by slag cement manufacturers and the Slag Cement Association the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement ACI Committee 233 2004
The ordinary concrete has a cement content of 320kg/m 3 and a water/cement ratio of 0 50 Application of blastfurnace cement in practice Table 7 show a mix design and some results of the production control for the use of blastfurnace cement with high sulphate resistance HS and a low alkali content NA for the production of pipes for drinking
Large Batches of Concrete Mixes 15 Mpa This is a low strength concrete mix and is suitable for house foundations that are not reinforced and for boundary walls and freestanding retaining walls To make 1 cubic metre of 15 Mpa concrete you will need to mix 5 1/2 bags of cement with 0 75 cubic metres of sand and 0 75 cubic metres of stone
A properly proportioned concrete mix should possess these qualities 1 Acceptable workability of the freshly mixed concrete portland cement blended cement fly ash slag silica fume and natural pozzolans The water cementitious cement ratio referred to the ratio of water to portland cement or water to blended cement
Geopolymer concrete GPC is an innovative and eco friendly construction material In the experimental investigation examine the effect of ground granulated blast furnace slag GGBFS in the GPC
copper slag ranging from 0 for the control mix to 75 were considered The cement mortar with mix ratio cement sand of 1 3 and 1 5 was prepared Figure 1 shows the experimental setup for static test on stack bon ded masonry units Stack bonded masonry units were prepared using five numbers of clay wire cut bricks of
Binder type Crane mix Pump mix slump = 75 mm slump = 150 mm 100 PC 175 185 10 CSF 185 195 30 FA 160 170 50 GGCS 175 185 50 GGBS 170 180 Design of slag concrete mixes can be done in the same manner as for standard Portland cement concrete mixes Mix proportions shown in Table 5 are based on the C CI method 4 except that the coarse aggregate
As the water to cement ratio increases the strength of a concrete mix decreasesncrete mix decreases As the surface area of the aggregate increases the more water will be needed to maintain a given slump Coarser Surface Texture Particle Shape Particle Size Distribution
mix Four other concrete mixes were prepared and they contained 100 75 50 and 25 partial replacement of gabbro aggregates with slag aggregates by weight The concrete mix was proportioned to have a 28 day compressive strength of 35 MPa The water to cement ratio
Three types of concrete were studied water binder ratio of 0 44 one Portland cement concrete as the reference and two AAS concretes activated by either sodium carbonate or sodium silicate SiO 2 /Na 2 O = 1 at doses that provided 5 7 and 6 1 Na 2 O relative to the slag mass respectively
mix Four other concrete mixes were prepared and they contained 100 75 50 and 25 partial replacement of gabbro aggregates with slag aggregates by weight The concrete mix was proportioned to have a 28 day compressive strength of 35 MPa The water to cement ratio was kept constant at 0 58 for all of the five mixes
EFFECTS OF MIX RATIOS ON THE CHARACTERISTICS OF RECYCLED IRON AND STEEL SLAG CONCRETE BY A A RAHEEM1 O A OLOWU2 1Department of Civil Engineering Faculty of Engineering and Technology Ladoke Akintola University of Technology Ogbomoso Nigeria
Concrete Mix Design Design concrete mix of 1 1 05 1 71is adopted to attain 80N/mm2 The water cement ratio of 0 3 is used After several trails this mix design was finalised Six cube specimens were casted and tested after curing for 28 days The average compressive strength of 84 N/mm2 is achieved Steel Slag
Binder type Crane mix Pump mix slump = 75 mm slump = 150 mm 100 PC 175 185 10 CSF 185 195 30 FA 160 170 50 GGCS 175 185 50 GGBS 170 180 Design of slag concrete mixes can be done in the same manner as for standard Portland cement concrete mixes Mix proportions shown in Table 5 are based on the C CI method 4 except that the coarse aggregate
What is Slag Cement Slag cement is a hydraulic cement formed when granulated blast furnace slag GGBFS is ground to suitable fineness and is used to replace a portion of portland cement It is a recovered industrial by product of an iron blast furnace Molten slag diverted from
The grout mix was developed using 75 Ground Granulated Blast Furnace Slag 25 Ordinary Portland Cement and different concentration of activators and various water cement ratio 0 8 2 and 5 Various physical properties and strength properties were determined using the tests like specific gravity pH test Gel time Marsh cone viscosity
Mix 2 23 25 30 66 47 12 33 75 Mix 3 25 29 32 77 48 77 38 43 Mix 4 26 81 34 95 54 56 54 87 Mix 5 24 56 30 23 51 63 46 55 C Flexural Strength To find the flexural strength of concrete beam specimens of standard dimension 500x100x100 mm were castwith 10 20 30 40 50 and 60 replacement of fine aggregate by copper slag and for control
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تتميز هذه السلسلة من كسارة الفك بنسبة تكسير كبيرة , حجم منتج موحد , هيكل بسيط , عمل موثوق به , صيانة سهلة وتشغيل اقتصادي.
