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effect of superplasticiser on stone dust concrete

(PDF) Effect of Superplasticizer on Fresh and Hardened

The effect of superplasticizer (SP) on properties of fresh and hardened concrete has studied; the properties of concrete inspected are compressive strength and slump test, hence, an experimental

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Use of Superplasticizers and Its Effect

Use of Superplasticizers and Its Effect. Concrete Early Strength. The reduction of w/cm by 20 to 25 % enhances concrete early strength by 50 to 75 % as shown in figure below: Figure 1 Influence of the addition of superplasticizers on the early strength of concrete with cement content of 370 kg/m 3 and cast in room temperature (Neville, 1995).

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Effect of Superplasticizer on Fresh and Hardened

superplasticizer will have positive effects on properties of concrete, both in the fresh and hardened states (4). In the fresh state, utilization of superplasticizer will normally reduce tendency to bleeding due to the reduction in water/ cement ratio or water content of concrete. However, if water/

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Effect of Superplasticizers on Workability of Fresh Concrete

Jul 17, 2019· Superplasticizer is a type of admixture which is added during concrete making to improve its certain properties. Effect of Superplasticizers on Workability of Fresh Concrete. 1.Type of Superplasticizers. It is a well-established fact that the average molecular weight of the plasticizer is of primary importance for its efficiency as a

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EFFECT OF SUPERPLASTICIZER ON PROPERTIES OF MORTAR

combination in a concrete mix viz., improved workability for a given w/c or reduction in free water for a target workability (Maheshwarappa et al., 2014). An extensive literature had been carried out to study the effect of superplasticizer on the compressive strength of concrete and its workability. A study

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Utilization of Stone Dust as Fine Aggregate Replacement in

replacement level of stone dust casted on 1 1.5% dose of super plasticizer with slump vale of 25 which can be maintained by extra dose of 35 mm. Finally it can be stated that the stone dust is to be used in concrete with partially or fully replacement of fine aggregate. TABLE 4. Compressive Strength of Concrete Concrete Cube Group

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Stone Dust in Concrete: Effect on Compressive Strength

Abstract- Stone dust is a waste material obtained from crusher plants. It has potential to be used as partial replacement of natural river sand in concrete. Use of stone dust in concrete not only improve the quality of concrete but also conserve the natural river sand for future generations. In the present

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(PDF) Stone Dust in Concrete: Effect on Compressive Strength

The present paper study the effect of partial substitution of brick dust (BD), stone dust (SD), and recycled fine aggregate (RFA) as fine aggregate on the properties of natural aggregate concrete

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Superplasticizer Wikipedia

Superplasticizers (SP's), also known as high range water reducers, are additives used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more. These additives are employed at the level of a few weight percent.

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Effects of crushed stone dust on some properties of concrete

Jul 01, 1996· Crusher dust is a fine material formed during the process of comminution of rock into crushed stone or crushed sand. This dust is composed by particles which pass 75 μm BS sieve. Effects of dust content in aggregate on properties of fresh and hardened concrete are not known very well.

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Study on the Influence of Stone Dust on Adaptability of

This paper studies the influence of stone dust on adaptability of polycarboxylate superplasticizer and cement by the experiment of paste slump and mortar slump flow. The results indicate that polycarboxylate superplasticizer mixed in mortar increases with stone dust mixed because of large specific surface and water demand of stone dust. There is little effect on fluidity loss when the

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(PDF) Design of High Strength Concrete Using

Concrete is the most widely used construction material today. Increase in construction activities have led to an increase in demand for the various raw materials in concrete, especially river sand which is the conventionally used fine aggregate. Due

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EFFECT OF SUPERPLASTICIZER ON PROPERTIES OF MORTAR

combination in a concrete mix viz., improved workability for a given w/c or reduction in free water for a target workability (Maheshwarappa et al., 2014). An extensive literature had been carried out to study the effect of superplasticizer on the compressive strength of concrete and its workability. A study

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Suitability of Stone Dust in Concrete IJEDR

of stone dust in concrete. The graphical representation of slump values for different percentage of stone dust with constant dose of super plasticizer (i.e., at 0.8% by weight of cement) in concrete as shown in figure 3. It indicates at a constant dose the

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Performance of Fly Ash and Stone Dust Blended Concrete in

ash and stone dust in acidic sulphate environmental conditions. Normal concrete mix of strength grade 25 N/mm2 and concrete mixes of the same grade blended with fly ash and / or stone dust and super plasticizers were tested under normal water curing and varying sulphuric acid concentration conditions up

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Experimental Investigation on High Performance Concrete

100% stone dust and 25% fly ash with 1.2% of super plasticizer which superior characteristics was arrived .The details of the investigations along with the results are presented in this report. Keywords: High Performance Concrete, Fly Ash, M-Sand, Compressive Strength, Split Tensile, Flexural

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Feasibility to use of Fly Ash & Stone Dust as Partial

concrete by Partial Replacement of Cement with Fly Ash and Sand with Stone Dust. To attain the setout objectives of the present investigation, Partial Replacement of Cement with Fly Ash and Sand with stone quarry dust Used in Concrete by 5, 10, 15, 20% and 30 % respectively to produce Concrete.

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EFFECT OF STONE DUST ON COMPRESSIVE STRENGTH OF CONCRETE

Concrete is the most used construction material having basic ingredients as binding material, fine aggregate, coarse aggregate and water in predetermined proportion all the ingredients are homogeneously mixed to obtain resulting mixed of desired

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Effect of Limestone Dust| Concrete Construction Magazine

Apr 01, 1972· A publication titled Stone Sand by J. E. Gray and J. E. Bell, National Crushed Stone Association, Engineering Bulletin No. 13, 1964 discusses the effect of dust on the properties of concrete. Basically, dust affects the bond between the cement and aggregate so that compressive strength can be considerably reduced, and the dust material

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Stone Dust Doesn't Belong Under Pavers. Here’s Why

Stone dust, sometimes called rock dust, is a byproduct of crusher run that’s provided the bedding layer for many a paver project over the years. While it can work in some construction applications, there’s a growing recognition that sand washed concrete sand in particular has proven far more stable and exhibits properties that make

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Behaviour of Concrete on Replacement of Sand with Quaries

6. For M40 grade concrete the strength gradually increases for 1% to 1.6% super plasticizer whereas in quarry stone dust the strength decreases from 1% to 1.3% super plasticizer and then increases at 1.6% super plasticizer. References: 1.

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An Experimental Study on Silica Fume Blended Cement

Stone crusher dust is very much is useful as an alternate for river sand. In many areas good quality of stone crusher dust is available is at very low cost form crusher units. Form so many investigations it is provided that use of stone crusher dust in concrete as alternative for sand is good alternate as fine aggregate in concrete construction

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Effect on Strength Properties of M30 Grade of Concrete by

concrete. SAW DUST Wooden saw dust obtained from wood cutting industry with specific gravity 1.65 and saw dust passing through 2.36mm sieve was used in this work. SUPER PLASTICIZER Super plasticizer of high range water reducer from fosroc was used in this work Mix Proportion M30 Grade of concrete with cement content 450kg/m3,

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AN EXPERIMENTAL STUDY ON PROPERTIES OF THE CONCRETE

Feb 22, 2016· In such a situation stone dust can be an economical alternative to the river sand. The effect of water cement ratio on fresh and hardened properties of concrete with fully replacement of natural sand by stone dust was investigated. Concrete mix design of M40 grade was done according to Indian standard code (IS: 10262).The main

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