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has been cited by the following article:

• TITLE: Analysis of Factors Affecting Solidification Strength of Sludge in a Landfill Area of Shenzhen

  AUTHORS: Jihui Ding, Tianyv Zhang, Jie Huang, Wei Chen

  KEYWORDS: Curing Agent, Unconfined Compression Strength, Parallel Test, Orthogonal Experiment

  JOURNAL NAME: World Journal of Engineering and Technology, Vol.6 No.4, November 6, 2018

  ABSTRACT: Parallel and orthogonal tests are used to explore the influence law of the dosage and age of curing agent on the strength of solidified sludge. The test results show that: 1) The strength of solidified sludge is mainly related to the cement content and dry soil content, and presents a good linear relationship. The influence of gypsum content is not significant. As the age increases, the strength is greatly affected by the cement content. 2) At different ages, the unconfined compression strength of solidified sludge presents a linear relationship, and the change law of later strength can be predicted by early strength. 3) Degree of influence of curing agent dosage: cement dosage > gypsum dosage > dry soil dosage. The optimal mixture ratio is 8% of cement content, 30% of gypsum content (proportion of cement content), and 4 times of dry soil content (multiple of cement content).