rack phase difference (RPDdamagerecoveryRecent advances in physical understanding of creep and shrinkage of cement paste suggest a novel approach to setting and hardening processes. In high-strength concrete, due to a low water-cement ratio, self-desiccation occurs immediately after setting, and ...
7. The nonlinearities of self-anchored cable-stayed suspension bridge are studied. The influences of shrinkage and creep of concrete, rise-span ratio and girder camber on the system have been also discussed. 阐述了自锚式斜拉—悬索协作体系桥的非线性特征,分析混凝土收缩徐变、矢跨比和拱度对协作体系...
a我的叔叔经营一家公司,我看到他如何让管理自己的员工 My uncle manages a company, I saw how he does let manage own staff[translate] aBoth creep and shrinkage of concrete are time-dependent deformations and are discussed in[translate]
1.to move slowly with the body close to the ground, on hands and knees, or the like. 2.to approach slowly and stealthily (often fol. byup). 3.to advance slowly and often with difficulty:The car crept up the hill. 4.to sneak up behind someone (usu. fol. byup on):The prisoner ...
In order to make sure that such repair schemes are lasting, one must pay attention to the material bonding between newly applied concrete and old concrete substrate [8]. Interfacial failure is generally caused by incompatibility due to the difference in shrinkage strain between the old concrete sub...
Also, the CC mix has higher creep and shrinkage compared with the HVFAC mix. Statistical data analyses (both parametric and non-parametric) were performed to evaluate whether or not there is any statistically significant difference between the mechanical properties and fracture energy of the HVFAC ...
shrinkage rate of MS-HSC in the former 7 d age is higher than that of the natural sand HSC,but the difference of the shrinkage rate in the late age is not marked,Meanwhile the shrinkage rate reduces as the fly ash is added;the specific creep and creep coefficient of MS-HSC with 7% ...
shrinkage as the temperature goes down, resulting in severe overloading. This may destroy the specimen or the stress sensor; at least, the microstructure of the material is changed, which makes the test unusable. In contrast, the gravity driven system maintains a constant load in such a case...
Camber, strain, creep, and shrinkage measurements were made over a period of two years on a three-span prestressed concrete highway bridge and concrete spe... DM Houdeshell,TC Anderson,WL Gamble - University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois...
If the volume shrinkage is too large, it will affect the stability and economy of the gas storage. Several cases of storage scrapping owing to excessive volume shrinkage have occurred in France, Germany, and the United States [11]. Hence, research focused on the creep behavior of salt rock ...