The basic maintenance of the communication tower is very important
When the communication tower foundation returns to soil, do not use rock to backfill around the angle steel of the grounding body, but use soft soil to backfill to ensure good grounding resistance, and the return soil should be rammed. It is generally advisable to return to soil after the end of the maintenance period. When supervising the construction of the communication tower foundation, each process must be side-stationed and equipped with a photo (recording) camera to take necessary pictures or video. After the foundation work of the communication tower is completed, the construction unit, the supervision unit, the design unit, the civil construction unit and the iron tower construction unit shall conduct a joint acceptance of the communication tower foundation.
(1) The foundation pile concrete of the communication tower should be covered with straw mats or plastic film within 12 hours after pouring, and the plastic film should be covered tightly and there should be condensed water in the plastic film. Generally, it should be maintained for about 28 days (depending on the weather and temperature). Decision).
(2) The basic maintenance period of the communication tower can be counted according to the period corresponding to the cumulative daily average temperature of 6000 C〃d. The period of 00 C and below is not counted. The maintenance period should not be less than 14d at least, but should not be greater than 60d. .
(3) The foundation of the communication tower should be properly insulated when the temperature is low.
(4) Before the concrete strength of the communication tower foundation reaches 1.2N/mm2, no formwork or bracket shall be stepped on or installed on the communication tower foundation.
(5) When the average temperature of the day is lower than 50 C, the foundation of the communication tower shall not be watered.
(6) Sampling is submitted for inspection according to the national standard GBJ107 "Concrete Strength Inspection and Evaluation Standard". The communication tower can be installed only after reaching the standard.
