We use advanced technology of vacuum assistant mortar squeezing technique that combine absorbing method with squeezing method,enhanced the plumpness and compactness of opening grouting effectively,truly satisfied the jointly works between tendon and beton concrete and protect the tendon from rusting,making sure the durability of beam structure.

And the feeding rate and plumpness index of Channa asiatica changed with the season, highest in the summer and lowest in the winter.