max possible value of compacting factor for fresh green concrete

Evaluation of Characteristics of Concrete Mixed with ...

The fresh concrete properties were examined by carrying out compacting factor and slump. Three samples each were produced for each test. Sampling was in line with techniques stated in BS EN 12350-1 (2009) . Compacting factor, the slump was examined in line with stipulated procedures in BS 1881-103 (1993) and BS EN 12350-2 (2009), respectively.

Compaction of Concrete- Methods and Results of Poor ...

Different types of mechanical compaction methods are explained in the following paragraphs: 1. Shock or drop table. Shock or drop table is used to consolidate extremely stiff low slump concrete in making precast units. 2. Centrifugation. It is employed for compacting moderate to high slump mixtures in constructing poles, pipes, and piles.

September 1, 2003 CONCRETE MANUAL 5-694.500 …

If aggregate has a maximum size greater than 31.5 mm (1 1/4 in.), use 150 x 300 mm (6 x 12 in.) molds. White is Mn/DOT's standard color for concrete cylinder molds. Mn/DOT also recommends using domed lids instead of flat lids. This is to discourage the practice of stacking cylinder molds containing plastic concrete on top of one another.

GATE SOLVED PAPER - CE - Weebly

Q. 4 Maximum possible value of Compacting Factor for fresh (green) concrete is: (A) 0.5 (B) 1.0 (C) 1.5 (D) 2.0 Q. 5 As per IS 800:2007, the cross-section in which the extreme fiber can reach the yield stress, but cannot develop the plastic moment of resistance due to failure by local buckling is classified as (A) plastic section (B) compact ...

Properties of Self Compacting Concrete Using Recycled ...

Jan 01, 2013· This paper presents the influence of different amounts of recycled coarse aggregate (RCA) obtained from a demolished Town Club building of Banki, N.A.C of Cuttack region, about 25 years old on the properties of self compacting concrete (SCC) and compared the results with normal vibrated concrete (NVC) containing natural coarse aggregate (NCA).

04 Standard Test Methods for Self-Compacting Concrete

This standard covers the test method for slump flow of self-compacting concrete with a maximum coarse aggregate size of 40 mm or less. 2. Apparatus 2.1 A slump cone specified in JIS A 1101 (Method of test for slump of concrete) shall be used. 2.2 The plate[1] shall be made of steel and sufficiently watertight and rigid. It shall be

(PDF) Experimental Study on Self Compacting Concrete ...

This factor ultimately yields defectless, better-quality concrete structures.DISCUSSION Fresh and Hardened state properties of Self -compacting concrete Test results on fresh concrete the workability test i.e. Slump flow test, V-funnel test, L-box test results obtained for different fly ash replacement with cement i.e. (0%, 5%, 10% & 15%) With ...

Comparison of the Performance of Self Compacting Concrete

The Split Tensile Strength of Conventional Self -Compacting Concrete, and Mixing Self-Compacting Concrete. Type 7 days (N/mm2 14 days (N/mm2) 28 days (N/mm2) SCC 3.02 3.6 4.12 Mix-1 3.09 3.54 4.08 Mix-2 3.16 3.62 4.21 Mix-3 3.08 3.6 4.11 IV. CONCLUSION To increase the stability of fresh concrete using increased amount of fine materials in the ...

A Study on Self-Compacting Concrete by Replacing Fine ...

A Study on Self-Compacting Concrete by Replacing Fine Aggregate and Cement by Foundry Sand and Dolomite Powder Ragulraj1*, Vennila A2, Venkatasubramani R3, Sreevidya V4 1,2,4Department of Civil Engineering, Sri Krishna College of Technology, Coimbatore, India 3 Civil Department, Dr.Mahalingam College of Engineering and Technology, Coimbatore, India

CHAPTER 3 ROAD DESIGN

K = bulking or compaction factor (for rock, K = 1.3 - 1.4; for common earth compacted fills, K = 0.7 - 0.8. Other symbols are defined earlier in this section.) The effect of careful template selection on overall width of disturbed area becomes more important with increasing side slope.

What is the maximum possible value of compacting factor ...

The maximum possible value of Compacting factor for fresh (green) concrete is considered to be 1 theoretically, but lets look into it in a pragmatic way: CF = wt. of partially compacted concrete/ wt. of fully compacted concrete Now what it signifies is,

Fresh and hardened properties of self-compacting concrete ...

Jul 13, 2021· Testing method Fresh properties measurements. The slump flow and L-box (with 2 rebars) tests were conducted according to BS EN 206–9 [] and Guidelines for SCC [].The slump test characterizes the flowability and filling ability of the fresh SCC by measuring the mean diameter of the spread of fresh concrete using a conventional slump cone.

Is anything less than 95% standard proctor acceptable ...

Sep 11, 2013· For example, using a sandy/gravel fill with a maximum dry density of 129.2 pcf the contractor was only able to achieve 91% compaction. This house pad is between 2-4' and will support a slab on grade post-tensioned foundation.

Compaction of Concrete - Boral

Page 3 of 7 > compaction of concrete Table 1 Characteristics and applications of immersion vibrators Diameter Recommended Average Radius of Rate of concrete of head 2frequency1 3,5amplitude action placement 4,5 (mm) (Hz) (mm) (mm) (m3/h per vibrator) Application 20–40 150–250 0.4–0.8 75–150 1–4 High slump concrete in very thin

Compaction Factor Test - Workability Test Of Fresh Concrete

Procedure Of Compaction Factor Test: 1. Fill the upper hopper by pouring the concrete sample in it. 2. Open the hinged door at the lower end of the upper hopper allowing the concrete to fall into the lower hopper. 2. Immediately open the gate at the bottom of the lower hopper to allow the concrete to fall into the cylindrical mould. 3.

Factors Affecting Strength of Concrete - The Constructor

Compaction of concrete Any entrapped air resulting from inadequate compaction of the plastic concrete will lead to a reduction in strength. If there was 10% trapped air in the concrete, the strength will fall down in the range of 30 to 40%. Temperature The rate of …

Admixtures for Concrete - Memphis

concrete exposed to cycles of freezing and thawing (Fig. 6-2). Entrained air greatly improves concrete's resistance to surface scaling caused by chemical deicers (Fig. 6-3). Fur-thermore, the workability of fresh concrete is improved significantly, and segregation and bleeding are reduced or eliminated. Air-entrained concrete contains minute ...

CONCRETE Optimizing the Use of Fly Ash in Concrete

concrete grow dramatically with close to 15 million tons used in con-crete, concrete products and grouts in the U.S. in 2005 (ACAA 2006). Historically, fly ash has been used in concrete at levels ranging from 15% to 25% by mass of the cementitious material component.The actual amount used varies widely depending on the application, the properties

Recent innovations in Natural Fibre Reinforced Concrete: A ...

possible to be use in composite for different purposes. Jute ... concrete shows an acceptable value upto 30% increases and ... Then checked the compaction factor, flexural strength split tensile strength at 7th and 28th days for various concrete mixes. The results for workability,

Properties of Fresh Concrete and Factors ... - AboutCivil.Org

Mar 19, 2017· Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to describe the state of fresh concrete is consistence, which is the ease with which concrete will flow. The transition process of changing of concrete from plastic state to hardened state.

IS 5515 (1983): Specification compacting factor apparatus

value &o&d he the same as that of the specSed value in this standard. 1. SCOPE 1.1 This standard covers requirements of the apparatus and accessories Tssed for determining the compacting factor of fresh concrete with nominal maximum aggregate size …

Maximum Dry Density - an overview | ScienceDirect Topics

To get the maximum dry density and optimum moisture content, Standard Proctor's compaction test was conducted on fresh geopolymer mortar. The fluid media to prepare the mortar was water and various alkaline solutions of different molarities for comparison. The variation of the dry density with fluid-to-binder (f/b) ratio is shown in Figure 15.1.As in any of the particulate material with the ...

Top 6 Important Quality Tests Of Concrete

Aug 05, 2015· 5. Water Absorption Test. Here is the other test that would determine the durability of concrete. The three cube sample shall be taken from the delivered fresh concrete and kept it in the curing tank for 28 days or after 24 hours the concrete sample would be demoulded and it will be sent directly to the approved third-party laboratory to ensure its curing.

(Solved) - Q.4 Maximum possible value of Compacting …

Q.4 Maximum possible value of Compacting Factor for fresh (green) concrete is: (A) 0.5 (B) 1.0 (C) 1.5 (D) 2.0 Q.5 As per IS 800:2007, the cross-section in which the extreme fiber can reach the yield stress, but cannot develop the plastic moment of resistance due to failure by local buckling is classified as (A) plastic section (B) compact section (C) semi-compact section (D) slender section Q ...

Soil Compaction Handbook - Multiquip Inc

determines the maximum density achievable for the materials and uses this figure as a reference. Secondly, it tests the effects of moisture on soil density. The soil reference value is expressed as a percentage of density. These values are determined before any compaction takes place to develop the compaction specifications.

EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON …

There is strong evidence that aggregate type is a factor in the strength of concrete. Ezeldin and Aitcin (1991) compared concretes with the same mix proportions containing four different coarse aggregate types. They concluded that, in high-strength concretes, …

Maximum possible value of Compacting F actor for fresh ...

Compaction factor is the ratio of the weight of fresh, partially compacted concrete/ to fully compacted concrete. The maximum possible value of Compacting factor for fresh (green) concrete is considered to be 1 theoretically, but lets look into it in a pragmatic way:

Concrete- types, testing & properties - SlideShare

Sep 05, 2018· • Thus compacting factor is defined as the ratio of "weight of partially compacted concrete to the weight of fully compacted concrete" • Compacting factor values for concrete are as follows: • Higher the compacting factor, Higher the workability of concrete. 33.

Fresh concrete properties & its standard tests

Dec 22, 2011· 19. Slump Test >Table : Workability, Slump and Compacting Factor of concrete with 19 or 38 mm (3/4 or 1 1 / 2 in) maximum size of aggregate. Degree of workability Slump (mm) Compacting Factor Use for which concrete is suitable Very low 0 - 25 0.78 Very dry mixes; used in road making.

Maximum possible value of Compacting Factor for fresh (green)

Maximum possible value of Compacting Factor for fresh (green) concrete is: Download App. Academic Resource. Aptitude Data Interpretation Verbal Reasoning Non Verbal ... Maximum possible value of Compacting Factor for fresh (green) concrete is: 0.5 ; 1.0 ; 1.5 ; 2.0; Correct Option: A. 0.5.

Replacement of Coarse Aggregate by Using Naturally ...

properties of concrete as well as to achieve maximum strength than normal concrete. The tests conducted on fresh concrete are Slump cone, Compaction factor test and Vee-bee test. Also tests ... value SiO2 21.8 Al2O3 6.6 Fe2O3 4.1 CaO 60.1 MgO 2.1 Na2O 0.4 K2O 0.4 ...