Determination Of Drying Shrinkage for Aggregates

The test is developed on concretes of fixed mix proportions and aggregates of 20 mm max size.

Length Comparators (Length Measuring Frames) are used to determine the possible length changes in prisms of different size due to Drying shrinkage, Alkali Silica Reaction (ASR) etc.

TEST SET CONTENTS :

The test consists of :

• Length Measuring Frame

• Steel Mould according to related standard

• Steel Inserts for mould (pack of 10)

• Reference Rod

The set is available in four models :

• With 0.01 mm Analogue Dial Gauge

• With 0.01 mm Digital Dial Gauge

• With 0.001 mm Digital Dial Gauge

• With 30 ° 0.0001 mm Length Measuring Sensor and Digital Readout Unit which can be connected to Length Measuring Frames

PRISM MOULD

• Prism Mould 50 ° 50 ° 200 mm, three gang, complete with steel inserts, to determine the thermal properties and weathering of aggregates in drying shrinkage of concrete.

LENGTH COMPARATOR :

• Length Comparator; the top beam is adjustable to suit the specimen–s length.

DIAL INDICATORS :

• Analogue Dial Indicator: 10 ° 0.01 mm division

• Digital Dial Indicator alternatives:

• 12.7 ° 0.01 mm

• 12.7 ° 0.001 mm resolution

Standards Compliance :

• EN 1367-4, BS 812:102