Construction Quality Control Study of Double-Layer Continuous Paving for Large-Thickness Cement-Stabilized Base

Table 2

Design of pull strength test of core sample.

Simulate layered discontinuous paving	Simulate layered continuous paving
In accordance with the “Testing Rules for Highway Engineering Inorganic Binder Stabilizing Materials” (JTG E51-2009), the test pieces with the size of Φ150 mm × 150 mm were molded.
Weigh half of the mixture to make a test piece. After being demolded, the test piece was cured for 7 days. After that, put the test piece back into the test mold, spread a layer of cement paste on the surface, and then pour the other half of the same quality mixture, compact and curing for 7 d.	Weigh half of the mixture and pour it into the test mold, put into a pad for compaction, remove the pad after 1 hour, and pour the remained mixture into the mold, compact and curing for 7 d.