• 专利标题:   Low-shrinkage and low-creep concrete serving in complex environment of plateau, comprises cement, mineral admixture, dense modified material, fine aggregate, coarse aggregate, additive, and water.
  • 专利号:   CN115417631-A
  • 发明人:   MA G, WEI Y, TANG C, REN X, LIU S, ZENG X, WANG H
  • 专利权人:   UNIV CENT SOUTH
  • 国际专利分类:   C04B111/20, C04B028/00
  • 专利详细信息:   CN115417631-A 02 Dec 2022 C04B-028/00 202307 Chinese
  • 申请详细信息:   CN115417631-A CN11127285 16 Sep 2022
  • 优先权号:   CN11127285

▎ 摘  要

NOVELTY - Low-shrinkage and low-creep concrete serving in the complex environment of the plateau, comprises 300-400 kg/m3 cement, 150-200 kg/m3 mineral admixture, 10-20 kg/m3 dense modified material, 600-700 kg/m3 fine aggregate, 1000-1200 kg/m3 coarse aggregate, additive 0.5-5 wt.% of the total amount of cement and mineral admixtures, and ≤150 kg/m3 water and the water solid ratio is not more than 0.28. The dense modified material includes calcium sulfate whiskers and nano-silicon dioxide in a mass ratio of 1.5-2.5:1. USE - Low-shrinkage and low-creep concrete serving in the complex environment of the plateau. ADVANTAGE - The low-shrinkage low-creep concrete ensures good volume stability, at the same time, has good mechanical property and durability, and the shrinkage creep requirement of the concrete under the complex environment of satisfy, can be used in long service life engineering in plateau complex environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparation method of low-shrinkage and low-creep concrete serving in the complex environment of the plateau.