水泥

Subsequent inspection revealed that many of these lintels have sustained rusting to their surfaces and this is considered to be the cause of the break down of the cement rendered surface.

问题被发现是因为窗楣的部分水泥涂层脱落，在contractor 去掉剩下的水泥涂层后发现原来的窗楣表面已经生锈，这也是导致水泥涂层脱落的原因。

This trial test prows that when specific surface remains constant, the output of mill was l0%~15% increased per machine-hour, power consumption reduced 3 kWh/t; when admixture adding rate increased 6%, strength of test samples in each age is equal to that of samples without compound grinding aids added; the initial setting and final setting time are shortened slightly; the workability and fluidity of cement and the grindability of materials are improved remarkably.

结果表明，在比表面积保持不变时，台时产量可提高10%~15%，粉磨电耗成本可下降约3kWh/t；混合材掺量增加6%后，试样各龄期强度与不加复合助磨剂的水泥样强度相当；水泥的初、终凝时间均有所缩短；水泥的和易性、流动性及物料的易磨性能等方面均得到较大的改善。

CO2 and H2S exist in the hydrocarbon zone and foramtion water,as the accompany gases of petroleum and nature gaso or components of formation water,which will cause corrostion to the cement sheath under certain conditions of humidity and pressure.It will decrease the cement sheath's alkalinity,which results in the decrease of cement sheath's strength,permeability increase,and places a premium on fluid channeling and borehole wall sloughs accident in plastic formation,shortening the oil- gas well's production lifetime and giving rise to tremendous ecomonic losses.

CO2和H2S作为石油和天然气的伴生气或地层水的组分存在于油气层或地层水中，在一定的湿度及压力条件下会对固井水泥环产生腐蚀作用，从而降低水泥环的碱性，使水泥环强度下降，渗透率增大，并诱发流体窜流、塑性地层井壁跨塌等事故，从而缩短油气井的生产寿命，造成巨大的经济损失。

Taking the tests of the cement slipform concrete construction in Hai nan province, it discusses the selection of the optimum mixture ratio thus acquiring the amount of cement, sand ratio, gradation type and the use of additive.

通过总结海南省公路水泥混凝土滑模施工配合比试验与实践，探讨水泥砼的最佳配合比，以便确定水泥用量、砂率、级配类型、外加剂用量等指标的合理选用。

900M3 thick granite tile finish (yellow rust litchi-China origin) bush hammered finish c/w 20mm screeding with average 50mm thick cement and sand mortar base; butt and jointed with cement and sand (1:3) mortar pointed in matching colored cement grout and laid on screeded bed

900立方米厚的花岗岩砖饰面（荔枝铁锈黄，中国原产地）剁斧石面，使用20毫米沙浆，平均50毫米厚的水泥砂浆基地；用水泥和沙子（ 1：3 ）砂浆对接和连接，匹配彩色水泥灌浆并浇注在刮平的基床上。

Moreover, this kind repairers suitable temperature range is wide, from 0°C to 35° C, and can be used in the whole year. The cement concrete pavement fast repairer has a long time to be used in construction and is easy to operate, so it can be widely used in road construction.This thesis reports the present development situation of Portland cement concrete pavements in Sichuan Province. It focuses on the investigation of pavement conditions in the northern section of Dajian Road, the Chengdu-Longquanyi section of Chengdu-Chongqing Freeway, and Chengdu-Wenjiang-Qionglai Highway.

论文全面总结分析了四川省水泥混凝土路面的发展现状，重点对大件路北段、成渝高速成龙段、成温邛公路三个路段的水泥混凝土路面破损情况进行了调查，分析了主要的破损类型并进而指出了四川省水泥混凝土路面发展中存在的问题。

Factors which can accelerate the early hydration of cement,the setting in particular,such as excessively high C3A content,too low SO3 content,high alkali content and the blending of pozzolana with large inner specific surface area,etc.,will result in poor compatibility of the superplasticizer with cement.

凡是加速水泥初期水化的因素，特别是使水泥凝结加速的因素如C3A含量过高、SO3掺量过少、碱含量高以及掺入内比表面积大的火山灰质混合材等均使水泥与超塑化剂的相适应性变差。

A new expansive agent, Expandant DB, is developed for use in oilwell cementing to prevent gas channelling and poor bond quality.

姚晓，邓敏，唐明述，DB 型油井水泥膨胀剂的研究油井水泥固有的收缩特性是诱发油气井气窜和造成水泥环胶结质量差的主要原因。

On this basis, the physical and mechanical properties and durability of recycled aggregate cement stabilized using steel slag cement without clinker was studied.

在研究无熟料钢渣水泥特性和安定性的基础上，重点研究了由无熟料钢渣水泥制备的水泥稳定再生集料的力学性能和耐久性。

Chang-li cement plant has a storage capacity of 100 million tons of limestone mines, with the United States has 3800-watt Cummins generator sets, according to the international ISO9002 enterprise management, production of high quality international brands of cement, the main products have Albans licensing, the licensing sheep (Canton Cement cement plant in cooperation with Chang-li)(pre-production of international brands licensing wuyang cement) 325 bags of cement, exports to Hong Kong products in the Pearl River Delta Region and other places.

长利水泥厂拥有储存量1亿吨的石灰石矿山，配备有3800瓦美国康明斯发电机组，企业按国际ISO9002管理，生产高质国际名牌水泥，主要产品有奥尔牌，金羊牌(广州水泥厂与长利水泥厂合作)(前期生产国际名牌五羊牌水泥)325袋装水泥，出口香港，产品畅销于珠江三角地区等地。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。