Strictly manage the operators.
Control the mixing water of dry powder mortar.
Some substances have strong retarding effect.
Whenever the seasonal temperature changes, the engineering party changes, and the raw materials change, the laboratory should immediately feed back any change in the setting time, and adjust the mix proportion.
Take the mixing station as an example, strict quality control should be carried out from the aspects of production scale, production capacity, implementation process level, technical personnel level and measurement management of dry powder mortar, In particular, anhydrite and other preparation materials shall not be used in the mixing plant.
The verification report shall be filed by the mixing plant.
When the dry powder mortar has quality problems or setting time problems, some of the reasons are human factors.
Admixtures, especially retarders or retarding water reducers, shall be selected correctly to avoid excessive dosage.
The mixing station laboratory is the most direct and effective in controlling the setting time of dry mortar after construction.
Increase communication with the raw material factory The mixing station shall keep communication with the raw material factory during the production of dry powder mortar.
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The dosage must be accurate.
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When the processing technology, mixing amount and other indicators of raw materials change, timely measures shall be taken to control the quality.
When the water of dry powder mortar contains such substances as oil, acid, sugar, etc., abnormal condensation may occur.
When the temperature changes and the manufacturer changes, the mix proportion of aggregate, admixture and admixture of dry mortar shall be retested.
Therefore, it is stipulated that the mixing water used in the mixing plant shall be the water that has passed the test.
Strictly follow the measurement management and entrust the local measurement bureau to verify and confirm the production and test instruments of dry mortar.
Investigation on raw materials of raw material factory When selecting raw materials for dry powder mortar, the mixing station should first investigate the raw materials of raw materials, not just in form or based on price.
The measuring personnel shall conduct sampling inspection, repair and maintenance of production and test instruments.
Strictly implementing the management of the laboratory is an important step for the mixing station to control the quality.
So as to avoid problems of dry mortar caused by equipment problems.
Therefore, it is also important to strengthen the professional ability and professionalism of personnel.
Non professional personnel shall not use professional instruments and equipment, and the operation of equipment shall comply with the standards.
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From: Jiuzhu Mortar Statement: The content of this WeChat official account is not used for any commercial purposes, and no fees will be charged.
Dry mortar with proper setting time shall be selected.
The long setting time of dry powder mortar after construction is an important reason for super retarding.
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Once the dosage is increased, it will cause retarding, or even cannot set for a long time.
The selection of retarding agent and retarding water reducer shall be determined according to specific conditions.
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Please contact us in case of infringement, and we will delete it within 24 hours…
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