AZA 0815 SLAKING VESSEL

Description

Slaking Vessel is a specialized laboratory apparatus designed for conducting quicklime reactivity tests by monitoring the temperature rise during slaking. This test is essential in cement, lime, and materials laboratories for assessing the quality and behavior of calcium oxide (CaO) under hydration.

The vessel is typically constructed with corrosion-resistant materials such as stainless steel or anodized aluminum and features a double-walled or insulated chamber, allowing the accurate measurement of temperature changes without external heat interference.

The Slaking Vessel is used in procedures described in ASTM C110 – Standard Test Methods for Physical Testing of Quicklime, Hydrated Lime, and Limestone, which includes protocols for determining the temperature rise during hydration, an indicator of quicklime reactivity.

 Working Principle:

The reactivity of quicklime depends on how rapidly it reacts with water — the faster and more exothermic the reaction, the higher the quality of lime. The Slaking Vessel is used to measure the temperature rise over time as a sample of quicklime is slaked with distilled water.

Test Procedure Overview:

1. A fixed amount of quicklime (usually 150 grams) is placed into the pre-calibrated slaking vessel.

2. A measured quantity of distilled water (typically 600 mL) at a controlled initial temperature is added.

3. The temperature rise is monitored using a precision thermometer or thermocouple placed through the vessel’s central port.

4. The peak temperature and the time to reach it are recorded.

This test helps identify lime that slakes too slowly (low reactivity) or too violently (risk of explosion or spattering).

Key Features and Benefits:

• Standard-Compliant Design: Fulfills ASTM C110 reactivity test method requirements

• Thermal Insulation: Maintains internal environment to ensure accurate measurements

• Thermometer Port: Built-in hole for inserting precision temperature probes or sensors

• Sturdy & Corrosion-Resistant: Withstands repeated exposure to high temperatures and caustic lime

• Easy to Handle & Clean: Smooth finish prevents sticking of hydrated lime residue

• Suitable for Research & Industry: Widely used in quality control of lime used in cement, chemical, and environmental applications

Specifications:

Frequently Asked Questions (FAQ):

Q1: What is a Slaking Vessel used for?
It is used for testing the reactivity of quicklime by observing the temperature increase when it reacts with water.

Q2: Which standard does this test follow?
It follows ASTM C110, which specifies the procedures for physical testing of quicklime and hydrated lime.

Q3: How much quicklime is used for testing?
The standard test typically uses 150 grams of quicklime with 600 mL of distilled water.

Q4: Can the vessel be used with a data logger or thermocouple?
Yes. The vessel includes a thermometer or thermocouple port for accurate real-time temperature measurement.

Q5: What materials is the vessel made from?
Most Slaking Vessels are made from corrosion-resistant stainless steel or anodized aluminum for durability and chemical resistance.