With high-speed bearing pedestal grouting material

Bearing support grouting grouting material manufacturer, with high-speed bearing pedestal grouting material with high iron bearing pedestal grouting material casting requirements like concrete block is retained for seven days and 28 days test, how many set high demand, with iron bearing pedestal grouting material pick up a set of test blocks? A set of block 7 piece, too? The size of the sample size is how to calculate? Don't exceed 100 cubic with cooperation than concrete, sampling shall not be less than once a year. Should check the block of strength of concrete structures in the concrete pouring place randomly. Sampling and block the lien shall agree with the following rules: do not exceed 100 cubic with cooperation than concrete, sampling shall not be less than once; Each class of concrete mixing the same cooperation than the lack of 100 sampling shall not be less than one time. When a continuous casting beyond 1000 cubic; Every 200 cubic; Sampling time; Every floor, the same cooperation than concrete, sampling shall not be less than once; Each sampling should be set aside at least a set of specifications maintaining test block and maintaining test block with conditions of lien group number should be confirmed according to the actual demand. 1. Prepare mixing machine, grouting equipment, template and maintenance items, cleaning and advance grouting space will wet concrete appearance. 2. For the template and cement ( Sand) Pulp, plastic tape block template connection put to ensure no leakage, the pulp. 3. High-speed railway bridge bearings with 12 - bearing grouting material weight 15% of water mixing ( 2 - mechanical mixing 3 minutes, artificial mixing 5 minutes or more) 。 4. The mixing uniform data block into the prepared. With high-speed bearing pedestal grouting material casting requirement rules: 1, secondary grouting, should from the side or on both sides of the adjacent multipoint grouting, until from the other side of the overflow, the exhaust for grouting. May not be together for grouting from four sides. 2, in the process of grouting vibrating is prohibited. When necessary available grouting boosters along grouting layer at the bottom of the HGM with high-speed bearing pedestal grouting material, is prohibited from grouting layer, top drive, to ensure the uniformity of grouting layer. 3, after the grouting equipment foundation, should be 3 - after grouting 6 hours along the device marginal to cut 45 degree Angle ( See image below) In order to avoid the free end cracks, such as unable to handle trimming, should be 3 - after grouting After 6 hours with a spatula grouting layer appearance calender. With high-speed bearing pedestal grouting material block sampling method: based on weighing, take CGM - said 320 a super early strength grouting material 1800 g, 252 g water. Principle: because the cement of the frame beam and piers bearing four vague needs deepening bolt connection, and bolt needs be fixed depth, and high-speed rail bridge bearing pedestal grouting material can play the role very well. So do the high iron bridge bearing pedestal grouting material of test piece is used to test the rules of time of compressive strength, bending strength is very necessary.