A method of and an apparatus for controlling the water added to concrete batches wherein for a given concrete recipe and batch size, while mixing same, a series of empirical values of water quantity and consistency of the resulting mix are determined by initially feeding a quantity of water ...
.Inthefield, strengthofproperlycuredconcreteatagivenageisassumedtodependprimarilyonlyonthe water-to-cementratioandthedegreeofcompaction.Thedegreeofcompactionismostly relatedtoworkmanshipbutthewater-to-cementratiocanbeadjustedeasilybymodifying mixproportionsaswellastheuseofadmixturesintheconcretemix. Sinceearly1970s...
新拌混凝土水灰比测定方法TestingMethodsforDeterminationofWater-to-CementRatioFreshConcrete 第40卷第11期 2012年 11月 硅酸盐学报 JOURNALOFTHECHINESECERAMICS0CIETY Vo1.40,No.11 November,2012 圈 新拌混凝土水灰比测定方法 肖江帆,史才军,王德辉,贾路风,黄勇 (湖南大学土木工程学院,长沙410082) 摘要:水灰比是...
Table 4.13 recycled concrete mix design (water-cement ratio of the axial compressive strength) 翻译结果2复制译文编辑译文朗读译文返回顶部 Table 4.13 recycled concrete mix design (influence of water cement ratio on axial compressive strength) 翻译结果3复制译文编辑译文朗读译文返回顶部 ...
In order to study the influence of water-cement ratio on reinforced concrete beam, the cracking load and cracking time, the position of cracks, distribution and development condition, ultimate load and time of failure of the beam were defined as main observation indexes. Nine RC beams of differe...
Water-reducing admixtures are chemical admixtures designed to reduce the water:cement ratio of concrete without adversely affecting the rheological properties. From: Developments in the Formulation and Reinforcement of Concrete, 2008 About this pageSet alert ...
aMany different concrete mix designs can be prepared with lightweight aggregates, several types of sand andgravel,different waterto cement ratios, and admixtures. Concrete pipes are usually formed using zero-slump concrete or concrete with a very low water to cement ratio. 许多不同的混凝土混合料...
1. High water reduction rate, production of large fluid concrete under low water-cement ratio, shortening steaming cycle and accelerating module turnover2. The setting time is fast, the surface time of the prefabricated component is advanced, the early strength is improved, and th...
8.High water-cement ratio during construction and low water-cement ratio during solidification are realized by using electroosmosis technology to change the process of concrete construction.采用电渗滤水施工技术,满足了混凝土大水灰比施工、小水灰比固化的要求。
Evaluation of Shrinkage Induced Cracking in Concrete with Impact of Internal Curing and Water to Cement Ratio In this paper, the effect of internal curing with pre-soaked lightweight aggregate (PSLWA) on shrinkage and interior relative humidity of four series concretes with compressive strength at ...