Quantitative detection method for separation of roller compacted concrete aggregate by feeding

A quantitative detection method and technology of roller compacted concrete, applied in the direction of material inspection products, measuring devices, analysis materials, etc., can solve the problems of not achieving scientific, reasonable, objective and fair evaluation results, etc., and achieve the effect of low cost and simple operation

Inactive Publication Date: 2018-09-18
GUANGDONG NO 2 HYDROPOWER ENGINEERING COMPANY LTD
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Problems solved by technology

The above judgment methods fail to achieve scientific, reasonable, objective and fa

Method used

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  • Quantitative detection method for separation of roller compacted concrete aggregate by feeding

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Embodiment Construction

[0033] Refer to attached figure 1 , the present invention is a kind of quantitative detection method of the separation of aggregates of roller compacted concrete through gliding, it is characterized in that, comprises the following steps:

[0034] 1), the RCC before and after entering the chute is sampled at two points respectively, and the samples of the RCC at the two sampling points before and after the chute are respectively marked as No. 1 sample and No. 2 sample;

[0035] 2) Put each sample into the large-capacity cylinder respectively, and vibrate each large-capacity cylinder containing the RCC samples until the surface of the large-capacity cylinder is flooded, and scrape off the excess mixture along the mouth of the top of the large-capacity cylinder , after smoothing the top of the large-capacity cylinder;

[0036] 3), each sample is screened respectively, and the mortar is screened out;

[0037] 4) Rinse the sieved aggregate on the sieve with water, and remove the...

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Abstract

The invention discloses a quantitative detection method for separation of roller compacted concrete aggregate by feeding. The quantitative detection method uses a homogeneity index and changes thereofto quantitatively evaluate the separation of the roller compacted concrete feeding through an elephant trunk, provides an objective and fair quantitative detection method with simple operation and low cost for the degree of the separation of the roller compacted concrete through an outlet of the elephant trunk and the influence of the elephant trunk on the uniformity of the roller compacted concrete feeding through elephant trunk, can be used for objectively and fairly judging the quality of different types of elephant trunks, and provides a scientific basis for the selection of the elephanttrunk. The quantitative detection method is used in the field of testing the quality of roller compacted concrete transport.

Description

technical field [0001] The invention relates to the detection field of the transportation quality of roller compacted concrete, in particular to a quantitative detection method for the separation of aggregates of roller compacted concrete conveyed by gliding. Background technique [0002] Roller compacted concrete is more and more widely used in retaining dams of water conservancy and hydropower projects due to its high cost performance. Roller compacted concrete dams are generally as high as 100 meters, and the highest is hundreds of meters. The concrete transportation volume is large, and its transportation speed and cost have a great impact on the construction period and investment of the project. [0003] In the high and steep slope dam area with short construction period and high pouring intensity, RCC is transported into the warehouse by traditional vehicles, portal cranes, tower cranes, cable cranes, belt conveyors and other equipment, which still has some shortcoming...

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Application Information

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IPC IPC(8): G01N33/38
CPCG01N33/383
Inventor 汪永剑
Owner GUANGDONG NO 2 HYDROPOWER ENGINEERING COMPANY LTD
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