文档介绍：二级建造师学习资料
A single topic 1. About asphalt mixture construetion process requirement, the following statement is wrong () A dense gradation asphaIt mixture compaction thickness of each layer, should not be less than the nominal maximum aggregate grain diameter of 2. 5 3 times. Proper placement of asphalt concrete
B important 100 ~ 200 m test section, the main points and trial mix, shop test, two stages, and obtained the corresponding parameter. C after the hot mix asphaIt mixture pavement construetion for natural cooling, the surface temperature is below 600 C, can allow vehicles. D hot mix asphaIt mixture on the adjacent two radial and transverse joints of the lower cons true tion should be st aggered 1 m to. Answer: C parsing: when the surface temperature is too high to traffic mixture, easy forming rutting disease. 2, the city distance, the expressway, the surface layer of asphalt mixture through (test, the rutting resistance ability of the test, the indicators are dynamic stability. A Marshall answer: B resolution: to test the mixture temperature stability under high temperature in summer season, rutting test should be done. 3. The urban arterial road, the construetion of expressway hot mix asphalt mixture in the t empera ture below (, unfavorable cons true ti on. A. 15 answer: D B. 18 C, 12 D. 10) 0 C b. high temperature rut c. D compressive strength flexural)
Analytic: construetion of the asphaIt layer under low
temperature, compaction degree is insufficient, often occurred in the asphalt road surface early cracking, goes on quality such as disease. 4. The hot mix asphalt mixture paving the echelon form opera ti ons of long it udinal seam should be hot after sewing The lower level of longitudinal seam should be staggered over (). A. 50 mm answer: B resolution: longitudinal seam stagger on lower level, main is to avoid reflection cracks. 5. Urban expressway, the art erial road aspha It concre te mix appropria te USES (batch. A continuous answer: B resolution: