Preparation method of bridge floor crack pouring material suitable for cold environment and bridge floor crack pouring material

• Main Authors: HUANG WEIHAN, MA YIDONG, CHEN XIANHUA, WANG ZHIBIN, CUI XU, SHI HAONAN, XU GANG, QIU WENLI, ZHUO SHANGZHI
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses a preparation method of a bridge floor crack pouring material suitable for a cold environment and the bridge floor crack pouring material.The preparation method comprises the steps that 70-80 parts by mass of petroleum asphalt is heated to 165-175 DEG C in a vessel, 4-8 parts by mass of a reinforcing agent is gradually added, and after adding is completed, a high-speed shearing machine is used for shearing for 30-40 min at the speed of 5000-6000 r/min; raising the temperature to 190-200 DEG C, sequentially adding 16-22 parts by mass of a toughening agent and 1-1.5 parts by mass of an active agent, and shearing for 1-1.5 hours by using a high-speed shearing machine at the speed of 5000r/min; the temperature is lowered to 170 DEG C to 180 DEG C, the speed of a shearing machine is adjusted to 3000 r/min to 3500 r/min, 0.03-0.06 part by mass of a stabilizer is gradually added, and development is conducted for 30 min to 60 min; quickly pouring into a storage container after development to o