凝结时间

结果表明：石膏pH值、石膏细度和石膏品种不同，缓凝剂对石膏凝结时间和强度作用效果不同。

The results showed that for gypsum with different pH value , fineness , and variety , action effects of retarders on setting time and strength was also different .

试验结果表明，煅烧石膏和煅烧明矾石单掺和复合双掺的掺入量为5%时，水泥的凝结时间明显缩短，3d耐压强度在各温度下均有显著提高。

Experimental results show that , when calcined gypsum and calcined alunite were added by 5 % alone or synchronously , the setting time of cement decreases remarkably and 3d compressive strength at different temperatures increases remarkably .

温度、VC值及外加剂对碾压混凝土凝结时间影响探讨

Probing into the influence of temperature , VC value and admixture percentage on RCC set time

亚硫酸钙对C3A和C4AF凝结时间的影响

Influence of Calcium Sulfite upon the Setting-Time of C_3A and C_4AF

本文用测定凝结时间、XRD分析、化学分析及波谱分析等手段研究了含氟硅酸盐水泥的不正常凝结问题。

Abnormal setting of portland cement doped with CaF_2 was studied by setting time measurement , XRD , chemical analysis , and wave dispersive X-ray analysis .

作者应用XRD物相分析净浆稠度与凝结时间和硬化浆体强度试验，对掺纳米SiO2与掺硅粉的水泥硬化浆体的性能进行了比较性研究。

The comparison of properties of hardened cement paste ( hcp ) between nano SiO 2 and silica fume added has been studied by XRD .

通过对凝结时间、电阻率、化学收缩、抗压强度测试，探讨了三乙醇胺（TEA）对硅酸盐水泥初始结构形成和力学性能的影响。

The effect of triethanolamine ( TEA ) on the initial structure formation and mechanical properties of cement was investigated by the testing of setting time , resistivity , chemical shrinkage , flexural and compressive strengths .

考察了SAE对水泥砂浆的密度、吸水性、凝结时间以及水泥水化速度的影响。

The effects of SAE on the density , absorbency , setting time and cement hydration of cement mortars were studied .

方镁石一般和中间相伴随生长，尺寸大约为14μm。随着熟料中MgO含量的增加，水泥凝结时间延长，强度下降。

Periclase generally growth with the intermediate phase , the most size of the periclase is 14 μ m. With the increasing content of MgO in clinker , cement setting time , strength is decreased .

本文研究了低温（1300℃）烧成的不同性状的fCaO对水泥的标准稠度需水量、凝结时间、体积安定性和抗压强度等主要物理性能的影响。

Different characters of f-CaO produced by low temperature burning ( 1300 ℃ ) will have different influences on the physical properties of cement as water requirement for normal consistancy of cement , setting time , soundness and compressive strength .

方法：载药磷酸钙骨水泥固化后，用X衍射、凝结时间测试等方法评价其操作特性，用紫外光谱研究药物在37℃模拟体液中的缓释动力学。

METHODS : After SN loaded CPC was hardened , the properties of the material were evaluated by X ray diffraction and setting time test . UV was used to measure in vitro drug release from CPC pellets into simulated body fluid at 37 ℃ .

结果表明：2种骨水泥的凝结时间基本相同，初凝时间为5min左右，终凝时间为19.5min；

The solidifying time of these bone cements is similar , 5 min initially and 19.5 min finally .

实验结果表明：NiSO4和K4[Fe（CN）6]的引入使得固化体凝结时间变慢、抗压强度下降；

The results show that addition of NiSO 4 and K 4 [ Fe ( CN ) 6 ] slows down the setting time of solidified form and makes the compressive strength of solidified form decline ;

研究了低掺量重金属氧化物ZnO，PbO和CuO对水泥浆体的凝结时间和力学性能的影响，并借助SEM和XRD探讨了它们对水泥浆体微结构的影响。

The impact of heavy metal oxides , such as ZnO , PbO and CuO , on the setting time and mechanical properties of cement pastes was investigated . SEM and XRD were used to examine the microstructure of cement paste as well .

最后，借助XRD、SEM等微观测试手段对含磷渣粉水泥浆体水化产物的组成、微观结构特征及水化机理进行了分析，探讨了磷渣粉对混凝土凝结时间和强度影响的机理。

Finally , Microscopic test methods such as XRD and SEM were applied to study the composition and microstructure of hydration product as well as the hydration mechanism for cement paste with PSP . The influence of PSP on setting time and strength of concrete was also investigated .

结果表明，加入SAE使水泥砂浆的表观密度降低，吸水率下降，并且明显延缓了水泥的凝结时间及水化速度。

The results show that the SAE copolymer emulsion not only reduce the apparent density and absorb water rate of cement mortar , but significantly retard the setting and the hydration of portland cement .

介绍了BF、TH、FQ三种缓凝剂不同掺量对碱矿渣水泥凝结时间和强度的影响，并做了混凝土试验，介绍了工程应用情况。

Effect of different dosage of the three retarders as BF , TH and FQ on the setting time and strength of alkali - slag cement was introduced . The engineering application of this cement was also discussed in this paper .

在此基础上，又研究了不同水灰比条件下，JA速凝剂对铁铝酸盐水泥凝结时间的影响情况，同时探索了该速凝剂对铁铝酸盐水泥强度的影响规律。

Based on this result , the effect of the JA accelerating agent on the cement setting time is analyzed under different water cement ratios , and the rules governing such effect are also presented .

原有硬石膏G-N-M-J四元复合激发体系的改性研究已取得了较好的成果，得到了凝结时间控制在30min的硬石膏胶结料。

It had achievement under the study of G-N-M-J four-factor compound arousing system . It gains anhydrite cement , which coagulates in 30 minutes .

研究了一种新型液体混凝土超缓凝剂（命名为WHⅡ型），并探讨了其对普通硅酸盐水泥的水化、水化热、凝结时间、强度等的影响。

The effects of WH ⅱ super retarder on the hydration , the heat of hydration , the setting time and strength of Portland cement were researched by the methods of XRD , DTA and SEM .

结果表明，掺复合矿化剂可改善含碱水泥的物理性能&凝结时间正常，早期强度高，28d强度不倒缩。

It is shown that the physical properties of alkali-containing cements doped with complex mineralizer can be improved such as normal setting time , high early compressive strength and no decrease in 28 day strength .

对MPB凝结时间、强度的主要影响因素、MPB与混凝土的粘结性能以及MPB的水化动力学特征进行了探讨。

The study was focused on the key factors influencing the setting time and strength of MPB , the bonding property of MPB to old concrete and the kinetic feature of the hydration of MPB .

不同浓度的α-氰基丙烯酸异丁酯、异戊酯和α-氰基丙烯酰乙醇酸异丁酯对抗凝兔血在试管内凝结时间均在5s以内；

It was found that citrated rabbit blood in a test tube could be coagulated within 5 seconds after the addition of isobutyl α - cyanoacrylate . isoamyl α - cyanoacrylate and isobutyl α - cyanoacrylate glycolate in different concentrations respectively .

实验结果表明溶胶&凝胶转变时，不同的保温温度对凝结时间及SiO2玻璃的密度均有不同程度的影响，保温温度越高，凝结时间越短，SiO2玻璃密度越小。

The results show that when Sol-Gel is changed , preserving temperature and the time of gel have effect on the density of silica-glass in some extent . The higher the preserving temperature and the shorter the time of gel , the thinner the density of silica-glass .

高钙灰特性研究表明，除了组分含量波动、f-CaO含量高以外，显著延长凝结时间，掺50%高钙原灰的复合水泥不能正常凝结并可能引起安定性不良。

Study results of HF characteristic show that HF prolongs the setting time obviously and blend cement with 50 % HF shows abnormally setting , expect high f-CaO and instability of content .

将粉磨后不同细度煤矸石以不同掺量与熟料、石膏配置复合水泥，测定其3d、28d强度，标准稠度用水量和凝结时间。

In the study , coal gangue was grinded in particles with different sizes , and admixed into cement clinker with different contents , then the properties of the composite cement such as 3d and 28d strength , water requirement of normal consistency and setting time were tested .

试验表明：流态砼的组成与基准砼基本相似，凝结时间比基准砼延缓4～6h；

It is concluded that its composition is basically similar to that of the reference concrete besides the necessity of adding plasticiser ; the set time of guss concrete may be put off for 4 6 hours later than that of the reference concrete ;

研究了影响碱-粉煤灰-碱矿渣水泥（AAFSC）的强度的因素，测定了其凝结时间。

The influence factors of Alkali-activated-Fly ash-Slag cement ( AAFSC ) on strength were investigated and the setting time of AASFC was determined .

试验结果表明：当硫酸铝渣以3%~10%等量替代部分矿渣作混合材时，可缩短水泥凝结时间，提高水泥28d强度，但标准稠度需水量明显增加。

Test results showed that using 3 % ~ 10 % aluminum sulfate tailings replaced equivalent blast-furnace slag as mixed materials , the setting time of the cement can be shortened obviously , and the 28d strength of cement is also increased .

结果表明FT-I涂料凝结时间正常、安定性合格、力学性能和粘结强度符合GB18445-2001的要求、抗收缩性能和抗裂性、耐蚀性良好；

The results show that the setting time , soundness , mechanical performance and binding performance of the coating satisfy all the requirements accordance with GB 18445-2001 ;