四川资料员(国外英文资料).docVIP

四川材料员(国外英文资料) One, a single choice of choice. (15 points for each question, 15 points for each question.) Only one of the four candidates listed in each of the items is eligible for the title. Please fill in the following brackets. Neither choice, choice, nor choice is all. The ratio of the amount of bone and the total surface area of the aggregate is followed by the increase of its maximum size. A. all decreases b. both increases c. the former decreases, the latter increases The formula for the plaster is () A.c. aSO4 C.c. aSO4 Cement stability is the property of _________ when the mud is hardening. () A. Produces A high degree of compactness C. not deformed d. contract One of the reasons for the poor stability of silicate cement is that _________ is too abundant in cement. () A.C a ion B C, a (OH) 2, dc, aCO3 The standard specimen size for measuring the strength of concrete is _________mm. () A. 70.7 times 70.7 times 70.7. B. 100 times 100 times 100 150 times 150 times 150 times 150 times 200 times 200 The cement slurry is used to _________ before concrete is hardened. () A. gluing and filling C. provide early strength The greater the value of the concrete in the concrete mixing of the concrete, the greater the value of the concrete. A. the more liquid b. the smaller the liquidity The better the cohesion, the worse the water When measuring the strength of the concrete, the test result should be multiplied by the dimension scale () if the test is 100mm by 100mm by 100mm. 0.90 b.0.95 C. 1.05 d. 1.00 In the summer construction of large-sized concrete, the admixture is () A. A water reducer C. moderator D In the design of steel structure, the strength of carbon structure is the basis for the calculation of _________ strength. () A. sigma p b. sigma s Sigma b The road oil asphalt is marked by _________. () A. soften b. extend C. needle penetration D The amount of saturated content in petroleum asphalt chemical composition increases, and asphalt () A. The extension of