LENGTH COMPARATOR

LENGTH COMPARATOR

Product Code : MSI 1014

Standards: IS 1199:1959, IS 4031:1968, BS 1881, ASTM C151, ASTM C490

Product Overview

The MSI 1014 Length Comparator is a precision instrument designed for measuring drying shrinkage of concrete, autoclave expansion of Portland cement, and potential expansive reactivity of cement-aggregate combinations in mortar bars during storage and self-drying conditions. Manufactured in accordance with IS, ASTM, and BS standards, the instrument provides highly accurate length change measurements essential for durability and quality control studies.

The apparatus consists of a rigid channelled or round base fitted with two vertical pillars and an adjustable cross plate. A precision dial gauge measures minute changes in specimen length using reference points mounted in the test specimen. The unit is supplied complete with a stainless steel standardization bar for calibration and verification of measurement accuracy.

Features

✔ Conforms to IS, ASTM and BS standards
✔ High-precision measurement of length changes
✔ Suitable for shrinkage and expansion studies
✔ Heavy-duty rigid frame construction
✔ Adjustable cross plate for easy specimen positioning
✔ Supplied with stainless steel standardization bar
✔ Easy calibration and operation
✔ Ideal for laboratory quality control and research applications

Technical Specifications

• Dial Gauge Sensitivity: 0.002 mm

• Dial Gauge Range: 5 mm

• Reference Ball Diameter: 6.5 mm

• Frame Construction: Channelled or Round Base with Vertical Pillars

• Standardization Bar: Stainless Steel with Insulated Grip

• Calibration Reference Points: 6.5 mm Diameter Stainless Steel Balls

Standard Accessories

• Length Comparator Frame

• Precision Dial Gauge (0.002 mm × 5 mm)

• Stainless Steel Standardization Bar

• Insulated Grip Handle

• Reference Balls Mounted at Both Ends

• Complete Ready-to-Use Assembly

Optional Accessory

• Electronic Digital Dial Gauge (Available at Extra Cost)

Applications

• Drying Shrinkage Measurement of Concrete

• Autoclave Expansion Testing of Portland Cement

• Alkali Aggregate Reactivity Studies

• Cement and Mortar Expansion Testing

• Construction Material Testing Laboratories

• Research & Development Centers

• Quality Control Laboratories

• Civil Engineering Institutions

Benefits

• Accurate measurement of dimensional changes

• Reliable and repeatable test results

• Essential for durability and expansion studies

• Robust construction for long service life

• Compliance with international testing standards

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"MSI 1014 Length Comparator – Accurate Detection of Concrete and Cement Dimensional Changes for Advanced Quality Control."