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Laboratory Session 2 - Concrete Project Lab 1

Concrete Project Lab 1
Course

Structural mechanics (CIV2235)

33 Documents
Students shared 33 documents in this course
Academic year: 2021/2022
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Monash University

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Laboratory Session 2 (Lab2)

  1. Capping Test specimens will be taken out of the curing tank and handed over to the technical officer for capping on the day before Lab Session 2. Test specimens shall be capped such that the ends of the specimens which will be in contact with the platens shall be parallel within 2 degrees. Capping material contains mixtures of sulphur.

  2. Compression strength test Compression test shall be carried out according to AS1012, Part 9. The strength developed by a concrete made with given materials and given proportions increases for many months under favourable conditions due to ongoing chemical reactions (termed “hydration”) between the cement and water within the concrete. In the majority of specifications the strength is specified at an age of 28 days. Other key factors that can influence the strength include the temperature and humidity conditions during curing. Higher temperatures increase the speed of the chemical reactions within the hydrated cement and thus the rate of strength development, and in order to achieve higher strengths at later ages loss of water from the concrete must be prevented.

Standard Concrete Test Cylinder (100 mm diameter x 200 mm length)

Test Cylinder during Compressive Strength Testing Test Cylinder After Failure

Cylinder Capping Apparatus Capped Test Cylinder

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Laboratory Session 2 - Concrete Project Lab 1

Course: Structural mechanics (CIV2235)

33 Documents
Students shared 33 documents in this course

University: Monash University

Was this document helpful?
Laboratory Session 2 (Lab2)
1.
Capping
Test specimens will be taken out of the curing tank and handed over to the technical officer
for capping on the day before Lab Session 2. Test specimens shall be capped such that the
ends of the specimens which will be in
contact with the platens shall be parallel within 2
degrees. Capping material contains mixtures of
sulphur.
2.
Compression strength test
Compression test shall be carried out according to AS1012, Part 9. The strength developed by a
concrete made with given materials and given proportions increases for many months under
favourable conditions due to ongoing chemical reactions (termed “hydration”) between the
cement and water within the concrete. In the majority of specifications the strength is
specified at an age of 28 days. Other key factors that can influence the strength include the
temperature and humidity conditions during curing. Higher temperatures increase the speed
of the chemical reactions within the hydrated cement and thus the rate of strength
development, and in order to achieve higher strengths at later ages loss of water from the
concrete must be prevented.
Standard Concrete Test Cylinder
(100 mm diameter x 200 mm length)
Test Cylinder during
Compressive Strength Testing
Test Cylinder After Failure
Capped Test Cylinder
Cylinder Capping Apparatus

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