(2) transport the water to the health place.
(3) Sprinkling water: ① Sprinkle water for maintenance after initial setting (after 2-3h in summer) in 112h. Water should be sprayed to avoid damaging concrete and mortar, and the surface should be kept intact. The exposed part of the wooden template should be watered, and the test block should also be watered to keep it moist. ② Watering times: It is advisable to keep concrete or mortar moist. When the temperature is higher than 15℃, water it every 2 hours during the day, at least twice at night, and at least 4 times every day and night after three days. If the climate is dry, the watering frequency should be increased appropriately, and the watering frequency should also be increased for small masonry components and local plastering. (3) Ordinary cement shall be used, with water retention of not less than 7d, and pozzolanic cement and slag cement shall be used, with water retention of not less than14d ... (4) When the temperature is lower than 5℃, concrete shall be tightly covered, kept warm and moisturized, and no watering shall be allowed.
(4) Form removal: ① The concrete strength of the side formwork without bearing capacity is above 2.5MPa; The load-bearing bottom formwork shall reach more than 70% of the design strength of concrete. (2) The sequence of form removal shall be from bottom to top, with side first and bottom second, so as to avoid damaging the concrete surface and edges. (3) After form removal, the concrete surface shall be covered with straw bag (curtain) for water conservation immediately.