complete tests on concrete ppt

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complete tests on concrete ppt

Tests of cement in concrete technology | PPT

5. 5 Fineness Test The fineness of cement has an important bearing on the rate of hydration and hence on the rate of gain of strength and also on the rate of evolution of heat. Finer cement offers a greater surface area for hydration and hence faster the development of strength. The disadvantages of fine grinding is that it is susceptible to air …

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Non-Destructive Tests on Concrete – Methods, Uses

Methods of Non-Destructive Testing of Concrete. Following are different methods of NDT on concrete: Penetration method; Rebound hammer method; Pull out test method; Ultrasonic pulse velocity method; Radioactive methods; 1. Penetration Tests on Concrete. The Windsor probe is generally considered to be the best means of testing penetration.

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Cube test for compressive strength of concrete | PPT

1. Cube Test for hardened concrete • To determine the compressive strength of concrete Procedure • Test should be confirm to British standards Part 116-1881 • Cube mould size should be as per standards 150cmx150cmx150cm+- 0.15mm or 100cmx100cmx100cm+-0.15mm • Sample should be collect as per BS Part 101-1881 …

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PPT

Tests of Hardened Concrete. Axial tension. Stress. Balance for equilibrium loads = external forces internal forces = stress. Strain. deformation (elastic or permanent) load change in temperature change in moisture unit deformation = strain. Axial. Strain. Strength Envelope Slideshow 4231870 by...

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Concrete cube casting and Testing. | PPT

MAKING AND CURING CONCRETE TEST SPECIMEN.( CUBE CASTING) • Each layer must be compacted with the 600 mm long long rounded end of 16 mm Dia. Tamping bar, by roding 4times along each of the 4 side edge of the cube mould and 4 times from centre towards edge. This will ensure at least 32 times of minimum 35 strokes …

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Cement and cement concrete | PPT

5. CONCRETE Concrete is a composite material composed of gravels or crushed stones (coarse aggregate), sand (fine aggregate) and hydrated cement (binder),and imparts considerable hardness to the mixture. The cement reacts chemically with the water and other ingredients to form a hard matrix which binds all the materials …

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Cement and Concrete

Standardized Tests of Concrete. ASTM C-143 Slump Test ; ASTM C-39 Compressive Strength Test ; ASTM C-78 Flexural Strength Test; 15 ASTM C-39 Standard Test Method Compressive Strength of Cylindrical …

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principles of concrete mix design.ppt

Microsoft PowerPoint - principles of concrete mix design.ppt [Compatibility Mode] New Generation Concrete needs use of Special Materials in addition to above i.e. …

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PPT

Testing of Cement. Field Test. Colour Physical properties Presence of lumps Strength. Colour. Colour should be uniform Typical cement colour (gray colour with light greenish shade) It gives an indication of excess of lime or clay and the degree of burning. back. Physical properties.

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Tests for fresh concrete slump cone test | PPT

2. A.)Slump Cone test To Determine the workability of fresh concrete use for medium and high workability concrete Tools are used as follow Slump Cone Apparatus size 10 cm x 20 cm x 30 cm Tamping Rod size 16mmx60cm Scoop 100 mm Sampling tray 120cmx120cmx50mm Square mouthed shovel, size 2 in accordance with BS 3388. . …

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LECTURE NOTES ON CONCRETE TECHNOLOGY …

Concrete technology 4 Advantages of Concrete Ingredients of concrete are readily available in most places. Unlike natural stones ... cement and the time at which the needle of 1 mm square section fails to pierce the test block to a depth of about 5 mm from the bottom of the mould. A period of 30 minutes is the minimum initial

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Compressive strength in concrete test | PPT

3. COMPRESSIVE STRENGTH • The strength of concrete specimen depends upon cement, aggregate, bond, w/c ratio, curing temperature, and size of specimen. • The cube specimen is of the size 15 x 15 x 15 cm. If the largest nominal size of the aggregate does not exceed 20 mm, 10 cm size cubes may also be used as an …

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durability and permeability of concrete | PPT

22. Sulphate attack • Sulphate attack denotes an increase in the volume of cement paste in concrete or mortar due to chemical action between the products of hydration of cement and solution containing sulphate, and also sodium, magnesium and Cholorides. • The expansion reaction results in weakening of concrete masonry and …

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Permeability of Concrete | Permeability tests on concrete

This test requires a large sample of concrete when compared with the other tests. 3 concrete slabs of length & breadth 300mm x 300mm and thickness 75mm are cast and cured for 14 days and kept in the drying room for 28 days with a 50% relative humidity environment before conducting the test.

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Concrete | PPT

Concrete - Download as a PDF or view online for free. 5. TYPES OF CONCRETE AND ITS USES CLASSIFICATIONACCORDINGTO BINDING MATERIAL: According to binding material used concrete are classified into two types. (1) Cement concrete (2) lime concrete. CEMENT CONCRETE The concrete consisting of cement, …

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Tests of aggregates | PPT

6. PROCEDURE :- clean and dry aggregate sample confirming to one of the grading A to G is used for the test. Aggregates weighing 5kg for grading A, B, C or D and 10kg for grading E, F or G may be takes as test specimen and placed in the cylinder. The abrasive charge is also chosen in accordance with table and placed in the cylinder …

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Light weight concrete | PPT

14. Experimental Study of Light Weight Concrete by Partial Replacement of Coarse Aggregate Using Pumice Aggregate CASE STUDY14 Coarse Aggregate Crushed stone coarse aggregate conforming to IS 383 – 1987. The values of loose and compacted, bulk density values of coarse aggregates 4.417 kg and 4.905kg, Cement Ordinary …

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Civil Engineering

Modules / Lectures. Concrete Engineering Technology. Lecture-01 Introduction and course overview. Lecture-02 Constituents of concrete (Part 1 of 2) Lecture-03 Constituents of …

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Concrete test on site | PPT

3. Preparing Wet Concrete. Water /Cement Ratio. For normal mix, the amount of mixture for cement, sand, and course aggregate is measured by ratio of weight or ratio of volume. However, ratio of weight is most preferable. For example, a mixture of 1: 2 : 4 means 1 part of cement, 2 parts of fine aggregate and 4 part of coarse aggregate. In …

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Compressive Strength Test of Concrete: Cube Test, Purpose, …

Compressive Strength Test of Concrete. The compressive strength test of concrete is an essential procedure that helps engineers and construction professionals evaluate the …

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PRESENTATION ON CONCRETE | PPT

7. LIME CONCRETE The concrete consisting of lime, fine aggregates, and coarse aggregates mixed in a suitable proportions with water is called lime concrete. In this type of concrete hydraulic lime is generally used as a binding material, sand and cinder are used as fine aggregates and broken bricks, gravel can be used as coarse aggregates.

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Concrete testing | PPT

2. IntroductionIntroduction Testing is the basic method to verify that concreteTesting is the basic method to verify that concrete complies with the specificationsplies with the specifications. Strength of concrete is verified by testing samplesStrength of concrete is verified by testing samples (cubes, cylinders, or …

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Civil Engineering

Strength of Concrete: Factors Affecting Test Results: Download To be verified; 26: Mechanical Properties of Concrete:Elastic Moduls, Poision'Ratio,Fatigue, Impact: Download To be verified; 27: Creep of Concrete: Download To be verified; 28: Creep and Shrinkage of Concrete: Download To be verified; 29: Shrinkage of Concrete: Download …

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DESTRUCTIVE AND NON-DESTRUCTIVE TEST OF CONCRETE | PPT …

5. TENSILE STRENGTH TEST :- Modulus of Rupture :- Both two-point loading and center point loading can be used. Normally, tests are conducted in the laboratory after keeping the concrete in wet condition for 48 hours and at 24 degree Celsius. Rate of loading is 180 Kgf / min. fcr = pl/bd2 for the distance between line of …

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Civil Engineering

Lecture-34 Basic non-destructive testing for concrete structures : Download Verified; 35: Lecture-35 Measuring permeability in concrete : Download Verified; 36: Lecture-36 Some additional topics: Download Verified; 37: Lecture-37 Considerations in repair of concrete structures (Part 1 of 2)

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workability test of concrete | PPT

9. Introduction Compacting factor test, developed at the road research laboratory UK is more precise and sensitive than the slump test. It is primarily designed for laboratory work but can also be used in the field. It is particularly useful for concrete mixes of very low workability as are normally used when concrete is to be compacted by …

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7 Methods for Testing Concrete Strength

Method: To complete a penetration resistance test, a device drives a small pin or probe into the surface of the concrete. The force used to penetrate the surface, and the depth of the hole, is ...

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Non destructive test on concrete (ndt) | PPT

5. • Rebound Hammer Test: To estimate strength and hardness of the concrete in the cover region (IS: 13311 Part II) • UPV Test: To measure homogeneity, uniformity, compactibility and presence of crack or void, thus representing durability of concrete (IS: 13311 Part I). • Core Test: To evaluate in situ compressive strength of …

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Strength Evaluation of Concrete Structures with Physical Load Test

Strength evaluation may be required from time to time for various applications of concrete structure. Procedure for concrete structure physical load test is discussed in this article. Strength Evaluation of Concrete Structures with Physical Load Test The procedure of load test on concrete structures presented here depends on ACI -2008 Chapter 20.

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Penetration Resistance Test on Hardened Concrete – …

Minimum spacing between concrete and the edge of a concrete surface is 100mm. A minimum of three firmly embedded test probes in a given test area constitute one test. Testing Procedure . Place the positioning device on the surface of the concrete at the location to be tested. Mount a probe in the driver unit; Position the driver in the ...

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