Method for constructing continuously reinforced concrete pavement using foam shotcrete

A method for constructing a continuously reinforced concrete pavement using foam shotcrete, the method comprising:

• positioning steel bars at regular intervals in continuously reinforced concrete pavement is constructed, to be continuously connected for reinforcement, wherein the steel bars are positioned between a slip form paver and a pump car, with the pump car being located at a front side of the base layer and the slip form paver being located at a different side of the base layer;
• producing a normal concrete having a compressive strength of 21 to 30 MPa by mixing water, cement and aggregate at a predetermined ratio and transporting the normal concrete to a construction site via a concrete mixer truck, the concrete mixer truck including a mixing part;
• putting air bubbles by 20% to 33% volume amount of the normal concrete into the concrete mixer truck, and mixing the normal concrete with the air bubbles and a low-grade mixed material selected from the group consisting of fly ash, fine slag powder, and mixtures thereof by using the mixing part to form a normal strength concrete, then supplying the normal strength concrete is supplied from the concrete mixer truck to the pump car, then discharging and shooting the normal strength concrete from the pump car to the base layer through a shooting guide member of the pump car, with the pump car being located at the front side of the base layer and the slip form paver being located at the different side of the base layer, while dissipating the air bubbles included in the normal strength concrete to reduce a slump thereof by blowing a high-pressure compressed air of 5 atmospheres or above, thereby forming a lower layer of a continuously reinforced concrete pavement in which the steel bars are embedded;
• putting air bubbles by 20% to 33% volume amount of the normal concrete into the concrete mixer truck, and mixing the normal concrete with the air bubbles and a high-grade mixed material selected from the group consisting of silica fume, meta-kaolin, latex, polymer, coloring material, and mixtures thereof by using a mixing part to form a high-performance concrete, then supplying the high-performance concrete from the concrete mixer truck to the pump car, then discharging and shooting the high-performance concrete from the pump car to the base layer through the shooting guide member, with the pump car being located at the front side of the base layer and the slip form paver being located at the different side of the base layer, while dissipating the air bubbles included in the high-performance concrete to reduce a slump thereof by blowing a high-pressure compressed air of 5 atmospheres or above, thereby forming an upper layer of the continuously reinforced concrete pavement;
• and
• finishing the continuously reinforced concrete pavement to have a horizontal top surface by the slip form paver located at the different side of the base layer without vibrating the continuously reinforced concrete pavement.