2015年下半年天津材料员实务试题本卷共分为1大题50小题,作答时间为180分钟,总分100分,60分及格。一、单项选择题(共25题,每题2分,每题的备选项中,只有1个事最符合题意)1、由轻骨料配制成的__,一般具有良好的吸声性能,故也可作吸音砂浆用。A.耐酸砂浆B.防水砂浆C.保温砂浆D.耐碱砂浆2、烧结多孔砖的孔洞率大于等于__。A.15%B.20%C.25%D.30%3、混凝土强度标准差宜根据同类混凝土统计资料计算确定,计算时,当混凝土强度等级为C20和C25级,其强度标准差计算值小于2.5MPa时,计算配制强度用的标准差应取不小于__。A.2.5MPaB.3.0MPaC.3.5MPaD.4.0MPa4、Thecellphone,adevicewehavelivedwithformorethanadecade,offersagoodexampleofapopulartechnology’sunforeseensideeffects.Morethanonebillionare(1)aroundtheworld,andwhenasked,their(2)saytheylovetheirphonesforthesafetyandconvenience(3)provide.Peoplealsoreportthattheyare(4)intheiruseoftheirphones.Oneopinionsurvey(5)that"98percentofAmericanssaytheymoveawayfrom(6)whentalkingonawirelessphoneinpublic"(7)"86percentsaythey’never’or’rarely’speak(8)wirelessphones"whenconducting(9)withclerksorbanktellers.Clearly,thereexistsa(10)betweenourreportedcellphonebehaviorandouractualbehavior.Cellphoneusers--thatistosay,mostofus--are(11)instigatorsandvictimsofthisformofconversationalpanhandling,andit(12)acumulativelynegativeeffectonsocialspace.AsthesociologistErvingGotfmanobservedinanother(13),thereissomethingdeeplydisturbingaboutpeoplewhoare"(14)contact"insocialsituationsbecausetheyareblatantlyrefusingto(15)tothenormsoftheirimmediateenvironment.Placingacellphonecallinpublicinstantlytransformsthestrangersaroundyou(16)unwillinglistenerswhomustcedetoyouruseofthepublic(17),adecidedlyundemocraticeffectforsodemocraticatechnology.Listenersdon’talwayspassively(18)thissituation:inrecentyears,peoplehavebeenpepper-sprayedinmovietheaters,(19)fromconcerthailsanddeliberatelyrammedwithcarsasaresultof(20)behaviorontheircellphones.13()A.andthatB.asforC.whereasD.onthecontrary5、含泥量是指骨料中粒径小于__的颗粒含量。A.75μmB.95μmC.105μmD.115μm6、《混凝土结构工程施工质量验收规范》(GB50204—2002)规定,在钢筋混凝土中,氯化钙的掺量不得超过水泥质量的__,在无筋混凝土中掺量不得超过__。A.1%,2%B.3%,5%C.2%,5%D.1%,3%7、有一镁质生石灰,CO2+MgO的含量≥80,未消化残渣含量(5mm圆孔筛筛余)≤10,则此生石灰的级别为__。A.优等品B.一等品C.合格品D.不合格品8、流通费用较小的供应方式是__。A.直达供应B.中转供应C.发包方供应D.承包方供应9、石灰的保管期不宜超过__。A.1个月B.2个月C.3个月D.6年10、混凝土浇筑时.板、梁和大型及中型截面的柱子等的坍落度为__。A.10~30mmB.30~50mmC.50~70mmD.70~90mm11、与石油沥青相比,煤沥青具有的特点有__。A.温度稳定性好B.塑性好C.大气稳定性好D.防腐性好12、仓库按储存材料的种类划分可分为综合性仓库和专业性仓库,下列选项中,不属于综合性仓库的是__。A.水泥库B.钢材库C.木料库D.储存钢材、电料、木料、五金、配件等的同一个仓库13、混凝土是脆性材料,抗拉强度为抗压强度的__。A.1/10~1/5B.1/15~1/10C.1/20~1/15D.1/20~1/1014、陶瓷锦砖为__坯体。A.火石质或瓷质B.陶质或瓷质C.火石质或陶质D.陶质15、下列选项中,不属于半耐水性胶粘剂的是__。A.酪素胶粘剂B.聚醋酸乙烯胶粘剂C.三聚氰胺脲醛树脂胶粘剂D.酚醛树脂胶粘剂16、租赁法中的管理费和保养费均按周转材料原值的一定比例计取,一般不超过原值的__。A.2%B.3%C.4%D.5%17、微沫剂的掺量,以常用的松香热聚物为例,大约占水泥质量的0.005%~0.02%,使用时用__的热水拌和使用。A.60℃B.70℃C.80℃D.90℃18、表...