天津电视发射塔海拔高度为406.5m,是目前亚洲和我国的第一高塔。它由塔基、塔身、塔楼,钢筋混凝土桅杆及钢桅杆组成,塔体总重为10万t,混凝士工程量达3万m~3。因此,混凝土养护就显得十分重要。混凝土一般用水或湿砂养护,但由于天塔工程的特殊性,不能用湿砂养护,若用水养护,不仅浪费用水,而且易由于养护不均匀而造成混凝土后期强度的损失。为此,决定采用M 9养护剂养护。 The altitude of the Tianjin TV transmission tower is 406.5m, which is the highest tower in Asia and China. It consists of tower bases, towers, towers, reinforced concrete masts and steel boring bars. The total weight of the tower body is 100,000 tons, and the amount of the blister body is 30,000 m3. Therefore, concrete curing is very important. Concrete is generally maintained with water or wet sand, but due to the special nature of the tower construction, wet sand cannot be used for conservation. If water is used for conservation, not only water is wasted, but also the strength of the concrete at the later period is easily lost due to uneven maintenance. For this reason, it was decided to use M 9 curing agent for curing.