Patent KR-20060109419-A (KR)
Title: Method to remove virulence of cement in concrete structures
Inventor: HAN SANG KWAN
IPC: E04B1/92
Filed: 2006-10-02
Abstract: A construction method of a building using methods for removing the toxicity of cement contained in a concrete structure and removing inorganic or organic toxicities contained in all structure materials used for a building is provided to increase adiabatic effect of a building and to remove or weaken the toxicity of cement, the principle structural material of a building. A construction method of a building using methods for removing the toxicity of cement contained in a concrete structure and removing inorganic or organic toxicities contained in all structure materials used for a building comprises the steps of: forming spaces(78) in a wall, a ceiling or a floor of a building by attaching or placing remover composed of cloth, paper, non-woven fabric and lubricants to the outside of pipes, placing and coupling the pipes covered with the remover in a reinforcement skeleton composed of H-beams or reinforcing bars, coupling a form to the outside of the pipe and the reinforcement skeleton and placing concrete mortar(21) in the form, curing the concrete mortar for 5~50 hours and drawing out the pipe placed in the concrete mortar; injecting water or liquid which is mixed to weaken or neutralize the toxicity of concrete to the space for 5~50 hours and stirring the water or liquid injected to the space with components of concrete compulsively to make physical and chemical actions by operating a stirrer and a propeller, and then discharging the water or liquid by opening a discharge valve(228) of a discharge pipe(225) connected with the bottom of the wall; drying up the inside of the space by operating an air pump for 1~20 hours and injecting air into the space compulsively; placing a soil mixture which is composed of 40~90 weight percent soil, 10~60 weight percent water, 1~10 weight percent crushed charcoal or vegetable materials or mineral materials into the space and stirring the soil mixture by operating a stirrer and a propeller; putting a heater coupled with a power supply in the space and operating the heater for 2~5 hours to make the temperature of the soil mixture at 60~100‹C, and discharging the soil mixture through the discharge pipe by opening the discharge valve; re-putting the same soil mixture and putting a cooler coupled with a power supply, and operating the stirrer, the propeller and the cooler for 1~5 hours to make the temperature of the soil mixture at 0.5~5‹C, and then discharging the soil mixture through the discharge pipe by opening the discharge valve; while closing the discharge valve, refilling up the space with the same soil mixture and operating the stirrer and rotating the propeller for 1~5 hours to stir up the soil mixture filled in the space, and then stabilizing for 1~5 hours to make the soil mixture settled to the bottom; placing the same soil mixture in the space for 2~6 times and lifting up the stirrer gradually as much as the elevating height of the soil mixture deposited; and removing the stirrer and the propeller from the space as soon as the soil mixture is filled in the space completely, and filling up the end of the space with finishing materials.