Test Specification for Stabilized Materials of Inorganic Binders in Highway Engineering (JTGE 51-2009) P93: 3.1Standard curing method 3. 1. 1 After the test pieces are taken out from the test mold and weighed in large quantities, the pilot and large test pieces should be put into plastic bags. After the specimen is put into a plastic bag, the air in the bag should be completely removed, the bag 12 1 should be tied tightly, and the wrapped specimen should be put into the curing room. 3. 1.2 standard curing temperature is 20oC 2oC, and standard curing humidity is >; 95%。 The specimen should be placed on an iron frame or a wooden frame with a spacing of at least10 ~ 20 mm. A water film should be kept on the surface of the specimen, and direct shower with water should be avoided. 3. 1.3 unconfined compressive strength test, with standard curing age of 7d and soaking on the last day. For flexural tensile strength and indirect tensile strength, the standard curing age of cement stabilized material is 90d, and that of lime stabilized material is 180d. 3. 1.4 On the last day of the curing period, take out the specimen, observe whether the corners of the specimen are worn or missing, measure the quality, and then soak the specimen in water at 20℃ 2℃ to make the water surface about 2.5Cm higher than the specimen.