2. Extend the curing period, reserve test blocks with insufficient strength, and determine the strength of pile concrete by rebound or small strain test.
Concrete pile? Concrete piles (including ordinary reinforced concrete piles and prestressed concrete piles). It has the advantages of saving wood and steel, durability and low cost. It has been widely used in water conservancy, industry, civil and bridge foundation engineering, and is also often used for anti-sliding or waterproofing of slope and foundation pit support.
The cross sections of piles are square, rectangular, round and round, and the most commonly used ones are square and round cross sections. The side length of the square section pile and the outer diameter of the circular section pile are 20 ~ 60 cm. The length of the pile can reach 40 meters, with a pile cap at the upper end and a pile tip at the lower end. The manufacturing technology of concrete piles is basically the same as that of concrete poles.