Concrete solidifies into lumps in a short time

Since concrete solidified into lumps in a short time, and the steel and paint has some corrosion, so the concrete tank after each use, wash and adhere to the concrete tank on the material inlet and outlet of the concrete is a daily maintenance must work seriously. Including:
a. Precast concrete plant before each filling inlet, so that when the inlet kept moist during charging;
b. At the same time charging comes to vehicle wash water tank filled with water;
c. After loading washing Inlet, near the mouth of the feed residue washed concrete;
d. To the site after unloading, rinse out the chute, and then added to the concrete tank cleaning water within 30-40 L; return the vehicle to keep the concrete tank forward slow rotation;
e. Remember to let go before the next charging within the concrete tank sewage;
f. Each day when the concrete tank and ready mix concrete plant out material around the mouth, to ensure non-stick cake with cement and concrete. These work for as long as one is not careful, it will give the future work of great trouble.