DISCUSSION ON DRAWING-CORE INSPECTION TECHNIQUE FOR CEMENT-SOIL PILE Core-drilling inspection method for cement-soil pile could effectively reflect the quality of pile body,especially for inspection of pile length,pile core ... YU Xue-Ping,J Kong - 《Architecture Technology》 被引量: 0发表: 2014...
[36]. Finally, the patents ofmix design, bedding of pipe, backfill technique, and construction ofdikewere ceded to the National Ready Mix Concrete Association (NRMCA) [35,37]. Absence of an incorporated source and dispersing information created hesitance in the engineering community about the ...
Micro-XRF has developed into a powerful technique to analyse concrete by elemental mapping of the surface of a drill core using theM4 TORNADO PLUSmicro-XRF spectrometer. It allows fast measurment of large areas, with high resolution in short times and provides compositional information as well as...
1. This equipment is mechanical hydraulic PLC controlled synthesis technique equipment. Its characteristic is high efficient, easy-operated and easy-maintained. Block molding mainly by hydraulic, machinery as sideline, vibrate and press to finish...
Presented are detailed design calculations for the level-off placement technique, determination of required cement slurry and displacement volumes, and recommended displacement and RTTS packer setting depths. The expected depth of the top of cement plug is estimated. The design parameters are compared ...
replacement ratio, superplasticizer content, water/binder ratio, and liquidity index of untreated clay. Experiments were designed by using an optimization technique of the Taguchi method. After the installation of DM columns, core strengths of 28 and 56 days were determined. Optimization of ...
In engineering practise, the typical range of the UCS of soil-cement mixture is 0.5–2.5 MPa when applying the grouting technique to reinforcing and bracing excavation (Wang et al., 2014a). It may be appropriate to use a value between the ranges calculated by Eqs. (2), (3) for the ...
Compared with the traditional precast pavement stone, the sliding form pavement stone is a fast, convenient and economical new construction technique. 1 Slide form roadside stone eliminates the traditional installation process, which can save 80...
Identification of the main elements on the concrete surface (CaO, SiO2, Al2O3, Fe2O3, MgO) with hXRF using BRUKER calibration method for cement was performed in a relatively short time (minimum 30 s). The hXRF technique shows an accuracy at a level of 5% or less for the determination...
2) For a given cement augmentation technique (screws without cement augmentation, cannulated screws with cement injection or solid screws with cement pre-filling), no significant difference in pullout strength was found between conical and cylindrical screws (p > 0.05). 3) Cement infiltration into ...