Prism Mold, 2 x 2 x 10in, 2-Gang

Prism Mold, 2 x 2 x 10in, 2-Gang

2-Gang Prism Mold, 2x2x10in (51x51x254mm) is a precision tool designed for length-change testing of Portland cement paste, mortar, or concrete. It is commonly used to evaluate material performance under various conditions, such as alkali-silica reactivity (ASR) and other causes of dimensional instability. In combination with a Length Comparator, this mold allows accurate measurement of length changes in cast prisms, making it an essential tool for laboratories conducting durability and expansion tests on cementitious materials.

The mold is constructed with high-quality, corrosion-resistant steel to ensure durability and consistent results over time. It includes a sturdy base plate, removable partitions, and end plates to provide the precise length required for HM-268 Gauge Studs, which are cast into the ends of test bars for accurate measurements. The external dimensions between the ends of the gauge studs are 11.625in (296mm), with a specimen cross-section of 1x1in (25x25mm). Specimens produced with this mold are 11-1/4in (286mm) long, adhering to standard specifications for testing.

Key Features:

• Precision-made mold with a 2x2in cross-section, crafted from durable, corrosion-resistant steel for long-term reliability.
• Ideal for testing Portland cement paste, mortar, and concrete materials for dimensional stability and reactivity.
• Includes removable partitions and end plates for user convenience and flexibility.
• Designed for compatibility with the Length Comparator to measure expansion or shrinkage in compliance with standardized methods.
• Suited for evaluating alkali-silica reactivity (ASR), sulfate resistance, and other length-change behaviors in cementitious materials.

Applications: This mold is essential for laboratories conducting research and quality control in the construction industry. It is particularly valuable for testing concrete and mortar materials used in critical infrastructure, such as bridges, dams, and pavements, where long-term durability is crucial. It supports tests for material compositions under various conditions, including high alkali environments.

Standards and Compliance: This product meets the following test methods:

• ASTM C227: Test Method for Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method)
• ASTM C1260: Accelerated Mortar-Bar Method for Alkali-Silica Reactivity
• ASTM C1012/1012M: Sulfate Resistance of Hydraulic Cement Mortars
• ASTM C151/151M: Autoclave Expansion of Hydraulic Cement
• ASTM C157/157M: Length Change of Hardened Hydraulic-Cement Mortar and Concrete
• ASTM C490/490M: Apparatus for Use in Measurement of Length Change of Hardened Cement Paste, Mortar, and Concrete
• AASHTO R 70M/R 70: Alkali-Silica Reaction Testing
• AASHTO T 107M/T 107: Autoclave Expansion of Hydraulic Cement

Additional Requirements: Gage Studs for Mortar Bars are necessary for use with these molds to ensure accurate length-change measurements. The high-quality construction and adherence to industry standards make this mold a trusted choice for professionals in materials testing and research.