The production mix design shall include the following technical contents: determining the feed ratio of the silo; determining the allowable delay time of the cement stabilized material; determining the calibration curve of the binder dosage; determining the optimum moisture content and the maximum dry density of the mixture. Follow the steps below:1. According to the material proportion of each grade determined by the target mix proportion, the mixing equipment shall be debugged and calibrated to determine reasonable production parameters.2. The commissioning and calibration of the mixing equipment shall include the calibration of the weighing accuracy of the hopper, the calibration of the binder dosage and the control of the water addition of the mixing equipment, and shall meet the following requirements:(1) Draw the calibration curve of binder dosage at not less than 5 points.(2) According to the proportion relationship of each grade of materials, set the corresponding weighing device and adjust the feeding speed of each bin of the mixing equipment.(3) Carry out the first stage trial production according to the set construction parameters to verify the production grading. If the requirements are not met, the construction parameters shall be further adjusted.3. For cement stabilized and cement fly ash stabilized materials, the strength tests of the mixture under different forming time conditions are carried out to draw the corresponding delay time curve, and the allowable delay time is determined according to the design requirements.
The production mix design shall include the following technical contents: determining the feed ratio of the silo; determining the allowable delay time of the cement stabilized material; determining the calibration curve of the binder dosage; determining the optimum moisture content and the maximum dry density of the mixture. Follow the steps below:<br>1. According to the material proportion of each grade determined by the target mix proportion, the mixing equipment shall be debugged and calibrated to determine reasonable production parameters.<br>2. The commissioning and calibration of the mixing equipment shall include the calibration of the weighing accuracy of the hopper, the calibration of the binder dosage and the control of the water addition of the mixing equipment, and shall meet the following requirements:<br>(1) Draw the calibration curve of binder dosage at not less than 5 points.<br>(2) According to the proportion relationship of each grade of materials, set the corresponding weighing device and adjust the feeding speed of each bin of the mixing equipment.<br>(3) Carry out the first stage trial production according to the set construction parameters to verify the production grading. If the requirements are not met, the construction parameters shall be further adjusted.<br>3. For cement stabilized and cement fly ash stabilized materials, the strength tests of the mixture under different forming time conditions are carried out to draw the corresponding delay time curve, and the allowable delay time is determined according to the design requirements.
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