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2024 Vol. 0, No. 04
Published: 2024-04-10
1
Comparative study on frost resistance and pore characteristics of low heat concrete and medium heat concrete
ZHANG Yueting
Low heat concrete has received widespread attention in the field of hydraulics, which reduces the risk of early cracking of bulk concrete due to its slower initial heat release rate. In this paper, the freeze-thaw resistance of low heat concrete and medium heat concrete was compared, and the pore distribution at multiple scales was obtained by combining mercury intrusion porosimetry and liquid nitrogen adsorption method. The BJH model and DFT model were used to analyze the pore distribution of liquid nitrogen adsorption at different scales, and the roughness and pore size distribution of the pore surface were further characterized by the surface fractal dimension, and the fundamental reason why low-heat concrete has better freeze-thaw resistance was revealed from the aspects of concrete impermeability and pore structure.
2024 Vol. 0 (04): 1- [
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98
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5
Design of multi-point loading system for aggregate production line
SHI Huadong, et al
2024 Vol. 0 (04): 5- [
Abstract
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136
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8
Optimization transformation of aggregate production line to increase production and reduce consumption
Hot!
ZHANG Yingjie, et al
2024 Vol. 0 (04): 8- [
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71
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11
Study on a water-soluble Cr (VI) compound reducing agent for cement
Hot!
JIANG Yangming, et al
The reduction mechanism and efficiency of various reducing agents for conventional water-soluble cement hexavalent chromium were studied. By appropriate combination of reducing agents, carriers and surfactants, while ensuring the reduction effect, suitable surfactants are used to fully disperse the reducing agent in cement. Appropriate carriers are also used in composite reducing agents to improve their storage stability, thus developing an efficient, stable, harmless, and economical composite reducing agent.
2024 Vol. 0 (04): 11- [
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103
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17
Influence of cement raw material vertical mill on desulfurization of exit gas and thermodynamic analysis
LIU Weihua, et al
2024 Vol. 0 (04): 17- [
Abstract
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89
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20
Design and influence analysis of SCR denitrification process for cement kiln with high temperature and high dust
Hot!
LI Genan
2024 Vol. 0 (04): 20- [
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101
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25
Selection analysis of on-line monitoring CEMS instrument in cement industry under background of ultra-low emission
LI Jie, et al.
2024 Vol. 0 (04): 25- [
Abstract
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110
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28
Optimization of RDF alternative fuel disposal systemWANG Yukai
LUO Fan
2024 Vol. 0 (04): 28- [
Abstract
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104
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30
Analysis of two extreme phenomena in extrusion grinding system
LUO Fan
2024 Vol. 0 (04): 30- [
Abstract
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118
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33
Evaluation of alternative fuel use in cement kilns: three key indicators
WANG Junjie, et al.
2024 Vol. 0 (04): 33- [
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150
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38
Application of fluor gypsum in cement production
YI Jianxin, et al.
2024 Vol. 0 (04): 38- [
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139
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41
Simulation analysis of factors affecting decomposition rate of calciner
LI Yang
2024 Vol. 0 (04): 41- [
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92
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43
Effect of incomplete combustion of pulverized coal in calciner
LUO Jieyong, et al.
2024 Vol. 0 (04): 43- [
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99
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45
Design of limestone clay predosing program
HAN Xijun, et al.
2024 Vol. 0 (04): 45- [
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110
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47
Practice to improve burnability of raw materials
HOU Wanqiang, et al.
2024 Vol. 0 (04): 47- [
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102
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49
Application of low grade limestone in cement clinker production
LIU Zhenhe, et al.
2024 Vol. 0 (04): 49- [
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80
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52
Analysis and treatment of high temperature fault of input shaft bearing of hard gear reducer
WANG Weidi, et al.
2024 Vol. 0 (04): 52- [
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70
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54
Optimization of semi-final grinding system of cement roller press
Hot!
ZHANG Peng, et al.
2024 Vol. 0 (04): 54- [
Abstract
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89
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57
Improvement of motor installation mode of large jaw crusher
ZHOU Taifeng, et al
2024 Vol. 0 (04): 57- [
Abstract
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69
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59
Influence of on-line monitoring of oil on lubrication of cement equipment
ZHANG Xuejun
2024 Vol. 0 (04): 59- [
Abstract
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51
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61
Optimization of cement mill weigher
SHI Junwu, et al.
2024 Vol. 0 (04): 61- [
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90
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65
Research on measuring method of roll size in roller press based on machine vision
WU Xianbin
2024 Vol. 0 (04): 65- [
Abstract
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74
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68
Research on product intelligence of bag dust collector based on BIM platform
WANG Shuju, et al.
2024 Vol. 0 (04): 68- [
Abstract
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92
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71
Design of whole process unmanned delivery system for aggregates bulk system
LI Yanjun
2024 Vol. 0 (04): 71- [
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70
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74
Fitting calculation of motor running current and actual efficiency
CHI Yuan
2024 Vol. 0 (04): 74- [
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64
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76
Optimization of 5 000 t/d clinker production line preheater system
Hot!
WANG Yahao, et al.
2024 Vol. 0 (04): 76- [
Abstract
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97
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79
Ways to improve efficiency of waste heat power generation in cement enterprises
PAN Lei
2024 Vol. 0 (04): 79- [
Abstract
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84
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82
Renovation of desulfurized gypsum/phosphogypsum loading device in cement production system
WANG Suixin, et al.
2024 Vol. 0 (04): 82- [
Abstract
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108
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