Preparation of Artificial Aggregates from Solidified Reservoir Sediment and its Performance Research
Reservoir sediment contains a large amount of inorganic matter.After treatment,it can be used to produce building materials.This article uses a curing agent to solidify reservoir sediment and prepare artificial aggregates.The optimal dosage of the curing agent is studied through orthogonal experiments(the dosage of the curing agent is based on the dosage of the reservoir sediment).The results are:8%sodium silicate,6%gypsum,3%polycarboxylate superplasticizer,and 0.05%triethanolamine(hereinafter referred to as SRPT).Then,the optimal SRPT was added as an additional curing agent to prepare artificial aggregates and their performance were investigated.The results show that the maximum compressive strength of the aggregate with the optimal SRPT group added is 7.31 MPa,which is 44.2%higher than that of the group without curing agent.The 1-hour water absorption rate is 9.34%,and the bulk density is 937 kg/m3.This article uses SRPT curing agent to solidify reservoir sediment and prepare artificial aggregates,which can make high-value use of reservoir sediment and meet the regu-latory requirements.The research results provide new ideas for the utilization of reservoir sediment in hydraulic engineering.
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