A rapid method for measuring the attached water of building gypsum

A rapid measurement technology for building gypsum, which is applied in the field of rapid determination of water attached to building gypsum, can solve problems such as time-consuming and labor-intensive, and achieve accurate test results, reduce system errors, and reduce experimental errors.

Active Publication Date: 2020-07-31
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method can overcome the time-consuming and labor-intensive problem of more than ten hours in the prior art to measure the water attached to building gypsum, and quickly measure the water attached to building gypsum within tens of minutes, realizing the purpose of quickly measuring the water attached to building gypsum on the production line. The actual production of the product is instructive

Method used

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  • A rapid method for measuring the attached water of building gypsum
  • A rapid method for measuring the attached water of building gypsum
  • A rapid method for measuring the attached water of building gypsum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The building gypsum powder sample 1 (Wuhan Wuhan Iron and Steel Fly Ash Products Co., Ltd.), sample 2 (source: Huadian Xinxiang Power Generation Co., Ltd.) and sample 3 (source: Jiaxing Power Generation Co., Ltd.) passed through the 80-mesh sieve passed the following test methods. The test was performed in the vacuum dry weighing device.

[0064] Vacuum dry weighing device such as Figure 1-3 Shown.

[0065] in Figure 1-3 Here, the vacuum drying weighing device includes a vacuum drying oven 1 and a weighing instrument 17.

[0066] The vacuum drying oven 1 includes a vent 2, a vacuum gauge 3, a temperature control device 4, a vacuum valve 5, a suction hole 6, an air inlet 7, a power switch button 8 and an observation window 9, and is arranged in the vacuum drying box 1 The top insulation board 12;

[0067] The weighing instrument 17 is located above the vacuum drying oven 1, and a hanging basket 10 is provided on the boom 11 of the weighing instrument 17, and the hanging baske...

Embodiment 2

[0088] The building gypsum powder was measured by the same method as in Example 1, except that the measured mass of sample 1, sample 2 and sample 3 was 5.000 g.

[0089] The time and measurement results are shown in Table 2.

Embodiment 3

[0091] The building gypsum powder was measured by the same method as in Example 1, except that the measured mass of sample 1, sample 2 and sample 3 was 10.000 g.

[0092] The time and measurement results are shown in Table 2.

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Abstract

The invention discloses a method for rapid determination of building gypsum adhesive water. The method comprises recording the mass w1 of a weighing container, recording the total mass w2 of building gypsum powder and the weighing container, putting the weighed weighing container with the building gypsum powder into a scale pan of a vacuum drying weighing device, carrying out vacuum-pumping for some time, directly weighing the total weight w3 of the building gypsum powder and the weighing container, carrying out vacuum-pumping for some time, then weighing the total weight w4 of the building gypsum powder and the weighing container, and calculating adhesive water of a building gypsum sample. Compared with the traditional test method, the method is faster and accurate, can satisfy the requirements on rapid determination of building gypsum adhesive water in a production line, timely guides actual production and has an important practical significance.

Description

Technical field [0001] This application relates to, but is not limited to, a method for quickly determining the water attached to building gypsum. Background technique [0002] The measurement of water attached to building gypsum is beneficial to production control and product quality improvement. The prior art usually uses the following methods to measure the adhesion water of building gypsum: one is the test method adopted in GB / T5484-2012 "Gypsum Chemical Analysis Method": the sample should be representative and uniform, according to GB / T2007 .1 Method of sampling. Prepare samples not less than 100g (if the sample size is less than 3mm, it can be not less than 50g). Prepare the required fineness of the attached water sample according to the particle size of the received base sample and the amount of attached water (see Table 1). After mixing the sample, store it in a container that prevents moisture from evaporating and seal it for attachment. Determination of water. Weigh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
CPCG01N5/045
Inventor 王丽王鹏起周建中王莹周梦文谭丹君何亮
Owner BEIJING NEW BUILDING MATERIALS PLC
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