1、蜡对沥青路用性能的影响主要为( AB)。©/:uF
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A、高温时沥青变软;©/:uF
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B、低温变脆;©/:uF
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C、集料与沥青的粘附性能;©/:uF
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D、路面抗滑性能;©/:uF
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2、在进行沥青针入度试验时,应严格控制(ABD )©/:uF
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A、温度;©/:uF
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B、针与针连杆的总质量;©/:uF
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C、隔离剂的调配;©/:uF
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D、针尖与试样表面的接触©/:uF
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3、影响沥青和矿料之间粘附性的因素包括有(ACD )。©/:uF
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A、拌和机械的拌和效果;©/:uF
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B、拌和时矿料的干燥程度;©/:uF
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C、矿料的酸碱性;©/:uF
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D、矿料的表面的粗糙性©/:uF
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4、过高的水灰比对水泥混凝土造成的消极影响是(AD )。©/:uF
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A、粘聚性和保水性较差;©/:uF
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B、消耗更多的水泥;©/:uF
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C、耐久性不好;©/:uF
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D、不利于强度的提高©/:uF
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5、混凝土用砂应尽量采用(AC )的砂。©/:uF
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A、空隙率小;©/:uF
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B、粒径分布集中;©/:uF
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C、总表面积小;©/:uF
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D、空隙率和总表面积均较大©/:uF
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6、现行《公路土工试验规程》中常用测定土含水量的方法为:(AC )©/:uF
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A、烘干法和碳化钙气压法©/:uF
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B、炒干法和红外线照射法©/:uF
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C、酒精燃烧法和比重法©/:uF
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D、微波加热法和实容法©/:uF
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7、塑限测定方法有:(AD )©/:uF
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A、联合测定法©/:uF
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B、圆锥仪法©/:uF
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C、碟式仪法©/:uF
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D、搓条法©/:uF
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8、剪切试验所得土的强度指标,可以用于( AB)©/:uF
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A、估算地基承载力©/:uF
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B、评价土体稳定性©/:uF
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C、评价土的密实状态©/:uF
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D、计算地基的沉降量©/:uF
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9、土的组成不可能为( BCD)©/:uF
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A、三相体©/:uF
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B、两相体©/:uF
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C、四相体©/:uF
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D、五相体©/:uF
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10、土工原位测试试验有:( BCD)©/:uF
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A、击实试验©/:uF
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B、压缩试验©/:uF
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C、十字板剪切试验©/:uF
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D、标准贯入试验©/:uF
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