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A platform for research: civil engineering, architecture and urbanism
Preparation method of high-performance prestressed fiber-seawater-sea sand concrete
The invention discloses a preparation method of high-performance prestressed fiber-seawater-sea sand concrete. The preparation method is characterized by comprising the following steps: S1, airing sea sand and coarse aggregate; S2, weighing raw materials consisting of cement, seawater, the sea sand, the coarse aggregate, glass fibers, an expanding agent and a water reducing agent; S3, pouring the cement, the expanding agent, the sea sand and the glass fibers into a stirrer for stirring; S4, pouring the water reducing agent and the seawater which are uniformly mixed in advance into the stirrer for stirring; and S5, pouring the coarse aggregate into the stirrer, and conducting stirring to obtain the freshly-stirred prestressed fiber-seawater-sea sand concrete. According to the invention, the compressive strength, the elastic modulus, the peak strain, the toughness and the breaking strength of the concrete can be effectively improved, the crack resistance of the concrete is enhanced, the durability of the seawater-sea sand concrete is effectively improved, the strength of the seawater-sea sand concrete is improved, and the brittleness phenomenon of the seawater-sea sand concrete during damage is also improved.
本发明公开了一种高性能预应力纤维海水海沙混凝土的制备方法，其特征在于，包括以下步骤：S1、对海沙和粗骨料进行晾晒；S2、称取原材料：水泥、海水、海沙、粗骨料、玻璃纤维、膨胀剂以及减水剂；S3、将水泥、膨胀剂、海沙以及玻璃纤维倒入搅拌机中搅拌；S4、将预先混合均匀的减水剂和海水倒入搅拌机中搅拌；S5、将粗骨料倒入搅拌机中搅拌后便得到新拌预应力纤维海水海沙混凝土。本发明可以有效提高混凝土的抗压强度、弹性模量、峰值应变、韧度以及抗折强度，增强其抗裂性能，有效提高海水海沙混凝土的耐久性，既提高了海水海沙混凝土的强度，也改善了海水海沙混凝土在破坏时的脆性现象。
Preparation method of high-performance prestressed fiber-seawater-sea sand concrete
The invention discloses a preparation method of high-performance prestressed fiber-seawater-sea sand concrete. The preparation method is characterized by comprising the following steps: S1, airing sea sand and coarse aggregate; S2, weighing raw materials consisting of cement, seawater, the sea sand, the coarse aggregate, glass fibers, an expanding agent and a water reducing agent; S3, pouring the cement, the expanding agent, the sea sand and the glass fibers into a stirrer for stirring; S4, pouring the water reducing agent and the seawater which are uniformly mixed in advance into the stirrer for stirring; and S5, pouring the coarse aggregate into the stirrer, and conducting stirring to obtain the freshly-stirred prestressed fiber-seawater-sea sand concrete. According to the invention, the compressive strength, the elastic modulus, the peak strain, the toughness and the breaking strength of the concrete can be effectively improved, the crack resistance of the concrete is enhanced, the durability of the seawater-sea sand concrete is effectively improved, the strength of the seawater-sea sand concrete is improved, and the brittleness phenomenon of the seawater-sea sand concrete during damage is also improved.
本发明公开了一种高性能预应力纤维海水海沙混凝土的制备方法，其特征在于，包括以下步骤：S1、对海沙和粗骨料进行晾晒；S2、称取原材料：水泥、海水、海沙、粗骨料、玻璃纤维、膨胀剂以及减水剂；S3、将水泥、膨胀剂、海沙以及玻璃纤维倒入搅拌机中搅拌；S4、将预先混合均匀的减水剂和海水倒入搅拌机中搅拌；S5、将粗骨料倒入搅拌机中搅拌后便得到新拌预应力纤维海水海沙混凝土。本发明可以有效提高混凝土的抗压强度、弹性模量、峰值应变、韧度以及抗折强度，增强其抗裂性能，有效提高海水海沙混凝土的耐久性，既提高了海水海沙混凝土的强度，也改善了海水海沙混凝土在破坏时的脆性现象。
Preparation method of high-performance prestressed fiber-seawater-sea sand concrete
一种高性能预应力纤维海水海沙混凝土的制备方法
ZOU XIAOZHOU (author) / QIU YU (author) / LUO YUNHAI (author) / HE JIANHUA (author) / WU YANG (author) / MAO YUNFAN (author) / GAN LINXIN (author) / LIANG CHAOLI (author) / LI LIJUAN (author) / XIONG ZHE (author)
2021-08-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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