大工18秋《道桥工程实验（一）》离线作业（实验报告）及学习要求

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实验一：水泥实验
一、实验目的：                                                          
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二、实验内容：
第1部分：水泥标准稠度用水量、凝结时间测定
实验仪器、设备：                                                    
                                                                    
1、水泥标准稠度用水量
（1）实验原理：                                                     
                                                                    
（2）实验数据及结果
不变水量法
用水量W（mL）       
试锥沉入值S（mm）       
标稠用水量P（%）
P= 33.4—0.185S       
2、水泥凝结时间测定
（1）实验原理：                                                     
                                                                    
（2）实验数据及结果
凝结
时间        初凝时间：             min
        终凝时间：             min

第2部分：水泥胶砂强度检验
1、实验依据：                                                     
                                                                    

2、实验仪器、设备：                                               
                                                                    

3、实验数据及结果
材料用量
（g）        水泥        标准砂        水
                       
龄期        28天
抗折强度        试件编号        1        2        3
        强度，MPa                       
        代表值，MPa
（计算方法见PPT）       
抗压强度        试件编号        1        2        3        4        5        6
        破坏荷载（Fi），kN                                               
        强度（Ri），MPa
（Ri=Fi×1000/A，其中A=1600mm2）                                               
        代表值，MPa
（计算方法见PPT）       

水泥检验项目合格性评定：
（1）水泥的凝结时间是否符合要求，是如何判定的？
                                                                    
                                                                    
（2）水泥胶砂强度是否符合要求，是如何判定的？
                                                                    
                                                                    

实验二：混凝土实验
一、实验目的：                                                          
                                                                    
                                                                    
二、配合比信息：
1．基本设计指标
（1）设计强度等级              
（2）设计砼坍落度              
2．原材料
（1）水泥：种类          强度等级          
（2）砂子：种类          细度模数          
（3）石子：种类          粒    级                  
（4）水：                                   
3．配合比：(kg/m3)
材料        水泥        砂        碎石        水        水灰比        砂率
1m3用量(kg)        475        600        1125        200        0.42        35%
称量精度        ±0.5%        ±1%        ±1%        ±0.5%        --        --
15L用量(kg)        7.125        9.0        16.875        3        0.42        35%

三、实验内容：
第1部分：混凝土拌合物工作性的测定和评价
1、实验仪器、设备：                                               
                                                                    

2、实验数据及结果
工作性参数        测试结果
坍落度，mm       
粘聚性       
保水性       

第2部分：混凝土力学性能检验
1、实验仪器、设备：                                               
                                                                    
2、实验数据及结果
试件编号        1#        2#        3#
破坏荷载F，kN                       
抗压强度 ，MPa
其中（ ，A=22500mm2）                       
抗压强度代表值，MPa       

四、实验结果分析与判定：
（1）混凝土拌合物工作性是否满足设计要求，是如何判定的？
                                                                    
                                                                    
（2）混凝土立方体抗压强度是否满足设计要求。是如何判定的？
                                                                    
                                                                    

实验三：水准测量实验
一、实验目的：
                                                                    
                                                                    
                                                                    

二、实验原理：
                                                                    
                                                                    
                                                                    
三、实验内容：
1、实验仪器、工具：                                                 
                                                                    
                                                                    

2、水准仪的操作程序：                                               
                                                                    
                                                                    

3、实验数据及结果
水准测量记录表
测站
编号        点号        后尺下丝        前尺下丝        标尺读数        后尺—前尺        高差
中数        高差
改正        高程
                后尺上丝        前尺上丝                                       
                后视距        前视距        后尺        前尺                               
                视距差        ∑d                                               
1                                                                        13.650
                                                                       
                                1.234        0.960        0.274                       
                                                                       
2                                                                       
                                                                       
                                0.823        1.442        -0.619                       
                                                                       
3                                                                       
                                                                       
                                1.638        1.166        0.472                       
                                                                       
4                                                                       
                                                                       
                                1.135        1.257        -0.122                       
                                                                       

                                                                        13.650
注：表中相关数据计算公式需参考相关文献《测量学》或辅导资料三。

实验四：全站仪的认识与使用
一、全站仪的特点：
（1）                                                               
                                                                    
（2）                                                               
                                                                    
（3）                                                               
                                                                    
（4）                                                               
                                                                    

二、全站仪的构造：
                                                                    
                                                                    
                                                                    

三、全站仪的测量结果：
测量项目        测试结果
角度测量       
距离测量       
坐标测量