Open AccessMix proportion design of liquid soil material suitable for abutment back filling
Author(s) -
Chongwei Huang,
Meixuan Zhu,
Yi Zhang,
Kai-Lun Hu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/580/1/012057
Subject(s) - water content , fly ash , geotechnical engineering , abutment , cement , settlement (finance) , moisture , atterberg limits , materials science , mixing (physics) , compressive strength , environmental science , composite material , geology , engineering , structural engineering , physics , quantum mechanics , world wide web , computer science , payment
To solve the uneven settlement between the structures such as comprehensive pipe gallery, abutment back and road, aiming at the problems of insufficient compactness and heavy self weight of backfill materials at the back of abutment, a new type of backfill material for gravity platform back, namely liquid soil, is proposed. Many tests have been carried out on the compressive strength and water stability of liquid soil. According to the test results, the mixing ratio of liquid soil suitable for abutment backfill is as follows: without adding additives, the mass ratio of cement to fly ash is 8:92, and the moisture content is 45% or 47%; when 1.5% water reducing agent is added, the mass ratio of cement to fly ash is 6:94 or 8:92, and the moisture content is 40%; when the maximum particle size is 5mm,the mass ratio of cement and fly ash is 4: 96 or 6:94, the moisture content is 25%.