水泥的

The invention discloses a determining method for the plastic contraction stress of the cement base material, which can be applied to the measuring method for the plastic pressure of the cement base material and the analogous materials such as calcareousness, gypsum, soluble glass, magnesium matter gel material, clay, etc in the plastic condition.

本发明公开了一种水泥基材料塑性收缩应力的测定方法，可用于水泥基材料及其类似材料，如石灰、石膏、水玻璃、镁质胶凝材料、粘土等，塑性状态下的塑性收缩应力的测试方法。

Closely combine with construction practice and experience of one layer of road bed of cement fly ash broken stone in Ningbo,this text thoroughly discusses choice of its match ratio,construction techniques and quality control.

文章密切结合宁波地区水泥粉煤灰碎石层路基的施工实践和经验，就其配合比选择、施工工艺及施工质量控制等方面进行深入探讨，并提出如何做好水泥粉煤灰碎石层路基施工的具体建议，以期达到较好的工程应用效果。

Taking Laixi Interchange Project as example the technical measures in the construction of subbase with cement stabilized weathered rock granular material and base course with cement stabilized crushed materials are introduced.

以莱西互通立交枢纽工程为例，介绍了水泥稳定风化岩粒料底基层和水泥稳定碎石基层的施工技术措施，总结了几点成功的经验及今后工作中的一些注意事

The thesis is about numerical simulation of the subtask of the study and application of a new cement"s production process in plateau, which is based on an "863 project of Industrialization and Key Preparation Technology of Low Environmental Impact Cement.

本文研究为国家高技术研究(863计划)项目"低环境负荷型水泥及胶凝材料关键制备技术"(No.2002AA335050)的子课题"高原型新型干法水泥生产工艺特性的研究与应用"中的数值模拟部分。

Measures such as adjusting proportioning plan,strengthening the control of rawmaterial and f uel,improving calcin-ing process,optimizing cement grin ding system and strenthening cement homogenization were put forward.

5级的物理性能，以及其所配C30混凝土的性能，分析了产生差距的原因，并提出了调整配料方案、加强原燃材料管理、改进煅烧系统、优化水泥粉磨系统及加强水泥均化等技术措施。

Indoor flexural fatigue tests are carried out, the results are analyzed and two types of double logarithm fatigue equation under different stress level andequivalent stress level are got. Using the fatigue equation, the fatigue performance of porous concrete and common semi-rigid base materials and cement concrete are compared, the fatigue stress coefficient which is used in the load stress calculation for porous concrete as undersurface of cement concrete pavement and the tensile strength structure coefficient which is used in the flexural stress check for porous concrete as base of asphalt pavement are obtained.

进行室内小梁弯拉疲劳试验，对疲劳试验数据进行分析，得出多孔混凝土不同失效概率下两种形式的双对数疲劳方程，利用疲劳方程，将其疲劳性能与常用半刚性基层材料和水泥混凝土进行比较，还得出了多孔混凝土作为水泥混凝土路面下面层荷载应力计算的疲劳应力系数，和作为沥青路面基层层底弯拉应力验算的抗拉强度结构系数。

Using the fatigue equation, the fatigue performance of porous concrete and common semi-rigid base materials and cement concrete are compared, the fatigue stress coefficient which is used in the load stress calculation for porous concrete as undersurface of cement concrete pavement and the tensile strength structure coefficient which is used in the flexural stress check for porous concrete as base of asphalt pavement are obtained.

进行室内小梁弯拉疲劳试验，对疲劳试验数据进行分析，得出多孔混凝土不同失效概率下两种形式的双对数疲劳方程，利用疲劳方程，将其疲劳性能与常用半刚性基层材料和水泥混凝土进行比较，还得出了多孔混凝土作为水泥混凝土路面下面层荷载应力计算的疲劳应力系数，和作为沥青路面基层层底弯拉应力验算的抗拉强度结构系数。

Results show that C_(2)AS in high-alumina cement with CACA_(2)C_(2)AS system can be transformed into the Q phase when adding MgO and abundant CaO after calcined at high temperature.

结果表明：高铝水泥系统中的C2AS，在加入MgO和系统补钙的条件下，经过高温煅烧能够转化为Q相，高铝水泥系统CA 二铝酸一钙(CA2) C2AS变化为Q相CA C12A7.Q相CA C12A7的烧成温度为1 260~1 300 ℃，保温时间为30~60 min。

For these reasons, as well as the additional cost, we do not recommend routinely cementing femoral components designed for cementless insertion.

由于这些原因以及额外的费用，常规将设计成无骨水泥固定的股骨假体用骨水泥固定的做法不值得提倡。

Hall says one possible safety measure is placing a surface called "crushable concrete" at the end of the tarmac to help stop runaway airplanes.

Hall 说其中可能的安全措施是在碎石和沥青混合的表面铺一种叫&可挤压的水泥&，这种水泥可阻止飞机冲出跑道。

The X-ray diffract was used to analyze the crystal structure of the composite. Results show that after the talc was treated with blend coupling agent, the crystal structure of talc changed, and effect Intercalation phenomenon.

通过X射线衍射分析可知，用混合偶联剂对滑石粉进行预处理后，滑石粉晶体结构发生改变，产生了插层现象，使PP／滑石粉复合材料为纳米复合材料。

An authentic Maui wedding might require the services of a 'kahu', which is a Hawaiian minister.

毛伊可能需要一个真实婚礼服务'kahu'，这是夏威夷部长。