Key Points of Ground Base Construction from quangongzi's blog

Grass-roots acceptance. Ground-level construction to be subject to supervision and acceptance acceptance, flatness, compaction degree to meet the design and specification requirements, the surface without water, scum, etc., sufficient surface layer thickness and construction work conditions.

According to the requirements of the design drawings, release the outside line of the pre-cast floor and the installation location of the template, according to the pouring line, a reasonable division of the construction section to design sub-seam shall prevail.Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery

The installation of the template (tool channel). As the thickness of the concrete floor is generally thick, so the use of tool channel when the template, according to the location of the pay-off installed in the grassroots, using iron drill into the base to fix the channel position, For the 2500 ~ 3000mm, steel mold release agent inside coating. 5.2.5 Concrete mixing, transportation, paving

At present, the general amount of ground concrete pouring generally use purchased goods concrete to solve, if the site conditions, can also be located on-site centralized concrete mixing station. Site with compulsory concrete mixer spices, small dump truck delivery site. Mixing should be based on the construction mix feed, and stir the mixture evenly. Discharge and pavement discharge height must be controlled within 1.5 meters, so as to avoid the segregation of concrete, if segregation should be re-stirred.

The paving of concrete is done by longitudinal slitting method, and the width of the longitudinal strip is the same as the width of the slit. When the concrete mixture into the mold, the discharge should be concentrated, slow, thick thick template about 2cm higher, if necessary, to reduce material or feeding work, vertical and horizontal section to meet the requirements.

The vibration of the plate vibrator compact. Near the edge of the concrete plate should be inserted with the first vibration rod vibrator, to push the slow pull out by row or into the order of the order, the moving distance is not Should be greater than its role in the radius of 1.5 times, to avoid the collision template. And then use the plate vibrator fully vibrated from the board to the board in the slow forward, after the board quickly moved to the board edge, and then move slowly to the board, according to the order of advance. Each need to overlap 1/3 or 10 ~ 20cm, and then a row by row from the side to the center of the vibration.

Vibrator vibrator at each location the duration of the mixing material should stop sinking no longer take bubbles and gush cement mortar shall prevail, should not be too vibration. Vibration should be supplemented by artificial leveling, and at any time check the template, if loose, deformation, subsidence should be promptly corrected.  Vibrating beams with vibration

After vibrating and roughly flattening, the vibrating plate (vibrating beam) is scraped back and forth for 2 to 3 times, so that the surface of the pan is leveled off the bubble, the advancing speed is 1.2 ~ 1.5m / min. With the shovel personnel see the injustice should be timely excavation fill. When filled with gravel to fine concrete mixing material, is strictly prohibited to fill with pure mortar leveling. Vibration ram plate (vibrating beam) after leveling, and then further back to pull the pulp cylinder to mention slurry leveling. Always flatten the underside of vibrating beam when leveling.