Concrete Testing

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A hard compact building material formed when a mixture of cement, sand, gravel and water undergoes hydration

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Concrete

Front 2

Maintaining the humidity and temperature of freshly placed concrete during some definite period following, placing, casting, or finishing to assure satisfactory hydration of cementitious materials and proper hardening of concrete.

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Curing

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It is a special type of concrete that is capable of carrying a structural load or forming an integral part of a structure

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Structural concrete

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PCCP stands for.

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PORTLAND CEMENT CONCRETE PAVEMENT

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Chalks containing siliceous clays when burnt can be used for concreting.

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POZZOLAN CEMENT

Front 6

It is the difference between the height of the mold and the height of the vertical axis of the specimen once it is separated from the mold.

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SLUMP TEST

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Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens.

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ASTM C 39 / C 39M -18

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This workman shall be proficient in concrete technology and knowledgeable of the specifications.

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CONCRETE TECHNICIAN

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Made by mixing substances containing Calcium Carbonate such as chalk or limestone with substance containing silica, alumina, and iron oxide such as clay or shale.

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PORTLAND CEMENT

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Allowable slump for beams and columns.

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3"

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Allowable slump for slabs, walls, parapets, and tops.

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2"

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How many tamps of tamping rods is required per layer during slump test?

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25 TAMPS

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Concrete deposited in water.

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SEAL

Front 14

These are formulated products, usually in liquid forms, added to concrete, mortars or grout to modify and/or improve the properties of concrete or mortar in the wet and/or hardened state.

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ADMIXTURES

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Standard Specification for Portland Cement.

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ASTM C 150 / C 150M -19a

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Qualities of Good Concrete (4)

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• Strong

• Durable

• Uniform Quality

• Thoroughly Sound

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Types of Slumps (4)

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• True slump

• Zero slump

• Collapsed slump

• Shear slump

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Concrete tests (4)

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• Slump/Consistency Test

• Compressive Strength Test

• Tensile Strength Test

• Flexural Strength Test

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Two Major kinds of cement (2)

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• Pozzolan Cement

• Portland Cement

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What do you think is the importance of testing concrete?

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To know if the concrete is capable and can withstand load in a very long time.

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Differentiate the concrete mixture of Mortar, Plaster, Grout, and Paste

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• Mortar = cement + sand + water

• Plaster = cement + lime + sand +water

• Grout = cement + sand + considerable amount of water

• Paste = cement + water

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What would happen to a cement without admixture?

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• Cement naturally flocculates

• Mix water is trapped within flocs

• Trapped water is not available for workability

• Workability low to minimize water cement ratio

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What is the topic reported by group 3?

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CONCRETE

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Full names of all the members of group 3 - First Name, M.I., Last name

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• Eunice D. Mendoza

• Arnel Q. Ronquillo

• Micah D. Arranguez

• Aika Lynn S. Rueco

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Pavement Component (6)

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Wearing course

Base course

Subbase course

Subgrade

Embankment

Embankment foundation