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2025 Vol. 0, No. 9
Published: 2025-09-10
1
Study on effects of stearate types and dosages on strength and water absorption of alkali-activated slag cement mortar
YANG Kai, et al.
2025 Vol. 0 (9): 1- [
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45
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6
Exploration of using silver mountain copper tailings raw ore for cement clinker production
YAN Meiguo, et al.
In order to explore the feasibility of a copper tailings ore in Jiangxi Province as an alternative raw material in the production of cement clinker, the properties of various raw materials of copper tailings ore and their effects on the clinker firing process under different dosage conditions were studied. The results show that, compared with other silica-alumina raw materials, copper tailings show fine particle characteristics and excellent grinding performance, which can reduce crushing and grinding energy consumption. The reactivity is better than sandstone and shale, and slightly worse than phyllite. When the amount of copper tailings is less than 1%, the burnability of the raw material can be improved, but excessive incorporation can lead to abnormal liquid viscosity and inhibit the development of C3S crystals. Due to the high content of harmful components such as sulfur and alkali and the relatively insufficient content of SiO2, the maximum allowable content of copper tailings raw ore in cement raw materials is 4.52%
2025 Vol. 0 (9): 6- [
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34
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10
Study on influence of alkaline activators on alkali activation behavior of fly ash
WANG Xia, et al.
In this paper, the effects of two alkaline activators, water glass and sodium hydroxide, on the alkali activation behavior of fly ash were studied. The viscosity changes of the system and the dissolution behavior of Si4+ and Al3+ ions in the liquid phase were tested. The phase composition, morphology, and reactant bonds of hydration products in the hardened paste were studied by XRD, SEM, and infrared spectroscopy. The results show that the alkalinity of NaOH solution is higher, the degree of corrosion on the surface of fly ash is more serious, and the dissolution efficiency of Al3+ and Si4+ is higher. In the alkaline environment, the dissolved ions reach the saturation degree of silicon and aluminum monomers, and polymerize to form aluminosilicate oligomer, and then form N-A-S-H gel. Water glass has a corrosion phenomenon on fly ash particles, and then the dissolved Al3+ and Si4+ undergo geopolymerization to form N-A-S-H gel. The scanning electron microscopes revealed that with the extension of reaction time, the surface of fly ash was wrapped with N-A-S-H gelatinous material, and become increasingly dense.
2025 Vol. 0 (9): 10- [
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37
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14
Research progress on hydrogen-burning cement and analysis of its potential for pollution reduction and carbon emission reduction
Hot!
CUI Jingxuan, et al.
2025 Vol. 0 (9): 14- [
Abstract
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43
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20
Discussion on energy-saving design of distributed photovoltaic systems in cement plants
LI Jing, et al
2025 Vol. 0 (9): 20- [
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28
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23
Research and application of chloride ion control technology for solid hazardous waste disposal in cement kilns
CHEN Shumin, et al.
2025 Vol. 0 (9): 23- [
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26
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27
Research on energy saving and consumption reduction technology for co-disposal of waste liquids in calciner
WU Xiangsong, et al.
2025 Vol. 0 (9): 27- [
Abstract
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33
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30
Optimization and renovation of large-scale fuel substitution bypass ventilation in cement kilns
Hot!
2025 Vol. 0 (9): 30- [
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44
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33
A production attempt to use a biomass fuel (rice husk) to improve clinker quality
Hot!
MAO Wen, et al
2025 Vol. 0 (9): 33- [
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32
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35
technology in a 5 000 t/d cement production line
Hot!
ZHUGE Ruidong, et al.
2025 Vol. 0 (9): 35- [
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46
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38
Analysis of application potential of new-type ceramic fiber filter bags in cement industry
XU Rong
2025 Vol. 0 (9): 38- [
Abstract
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29
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40
Research and analysis of cement semi-final grinding system
SONG Yang, et al
2025 Vol. 0 (9): 40- [
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38
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45
Research on determination method and application of extrusion work index based on bed crushing
ZHANG Linfei, et al
The roller press is widely used in the grinding operation due to its high efficiency and energy saving, but there is no simple and reliable method to predict the production situations. In this paper, a test method for measuring the crushing power index of materials is proposed, which simulates the closed cycle process of the crushing equipment such as roll press. It has the advantages of simple operation and less material consumption, and can accurately evaluate the crushing difficulty of materials. Then, the calculation formula of extrusion work index based on bed crushing is established, which can be used to provide theoretical basis for production fluctuation, efficiency evaluation and production control of roll press, which has important significance and practical value for the basic research of bed crushing technology.
2025 Vol. 0 (9): 45- [
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26
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50
Analysis of force distribution of new type of kiln tail tower structure system
DONG Tianshu, et al
2025 Vol. 0 (9): 50- [
Abstract
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26
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54
Experimental practice of adding slag in five-stage feed downpipe at kiln tail
XU Xiaoli, et al
2025 Vol. 0 (9): 54- [
Abstract
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44
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56
Analysis of impact of petroleum coke on clinker quality
LIU Huixia, et al
2025 Vol. 0 (9): 56- [
Abstract
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35
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58
Practice of material stabilization transformation in mixing station silo of cement clinker enterprises
RAO Rui, et al
2025 Vol. 0 (9): 58- [
Abstract
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40
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61
Solution to oil leakage and deviation problems of belt bucket lift
QIN Xueheng
2025 Vol. 0 (9): 61- [
Abstract
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38
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65
Analysis of influence of stud shape on mechanical state of rolling surface
LI Guoyou
2025 Vol. 0 (9): 65- [
Abstract
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27
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67
A review of data-driven intelligent identification methods for cement production process conditions
WANG Chaohua, et al
2025 Vol. 0 (9): 67- [
Abstract
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21
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73
Intelligent cement grinding system one-click start-stop function design
LIU Jun
2025 Vol. 0 (9): 73- [
Abstract
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49
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75
Discussion on technical route for building a digitalization-based evaluation system for cement waste heat power generation efficiency
WU Wenhao
2025 Vol. 0 (9): 75- [
Abstract
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68
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78
Preparation and performance study of PE-ECC materials for bridge deck pavement of steel box girders
ZHANG Yongsheng, et al
In order to solve the problems of high brittleness, low tensile strength and easy cracking of cement-based materials in steel box girder bridge deck pavement, ECC for bridge deck pavement was prepared by polyethylene (PE) fiber, and silica fume was added to improve the dispersion of PE fiber, and the workability and mechanical properties of ECC were experimentally studied. The results show that the PE fiber is evenly distributed in the matrix, the 28 d compressive strength, tensile strength and flexural strength are 72.2 MPa, 4.15 MPa and 14.9 MPa, respectively, the ultimate deflection of the thin plate is 57.57 mm and accompanied by multi-crack cracking behavior, PE-ECC shows good ductility, and the properties meet the design requirements of bridge deck pavement materials.
2025 Vol. 0 (9): 78- [
Abstract
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19
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82
Influence of limestone powder replacing fly ash on concrete performance
NIU Maowei, et al
2025 Vol. 0 (9): 82- [
Abstract
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33
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85
Study on influence of gelling components on properties of cement-based repair materials
ZHANG Shuya, et al
2025 Vol. 0 (9): 85- [
Abstract
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27
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89
Analysis of concrete structure construction technology in urban construction water supply and drainage project construction
GOU Xing
2025 Vol. 0 (9): 89- [
Abstract
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31
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92
Rural road concrete pavement repair technology and optimization method for cement concrete mix ratio
MA Jianjun
2025 Vol. 0 (9): 92- [
Abstract
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35
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95
Application of modular integrated concrete design in the renovation of old residential areas
XU Xingyu, et al
2025 Vol. 0 (9): 95- [
Abstract
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29
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98
Construction method of municipal bridge concrete box girders under specific conditions
WANG Junhui
2025 Vol. 0 (9): 98- [
Abstract
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28
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101
Research on application method of machine vision technology in deformation detection of concrete highway bridge structures
YANG Jinxing
2025 Vol. 0 (9): 101- [
Abstract
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26
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104
Research on effects of freeze-thaw and traffic load on cracks in cement concrete pavement
LEI Yu
2025 Vol. 0 (9): 104- [
Abstract
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20
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107
Collapse mechanism and anti-collapse design of high-performance concrete frame structures under near-field earthquake excitation
SUN Jialiang, et al
2025 Vol. 0 (9): 107- [
Abstract
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22
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110
Application and practice of self-compacting concrete in complex joint construction
DONG Jipeng
2025 Vol. 0 (9): 110- [
Abstract
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24
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113
Research on applicability of high-performance cement-based materials in prefabricated building construction
BI Sihua, et al
2025 Vol. 0 (9): 113- [
Abstract
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19
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116
Causes and control measures of concrete cracks in hydraulic engineering
CHANG Xudong, et al.
2025 Vol. 0 (9): 116- [
Abstract
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18
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119
Intelligent detection and repair decision for asphalt concrete pavement cracks based on deep learning
HE Linyan
2025 Vol. 0 (9): 119- [
Abstract
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19
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122
Analysis of quality defects in concrete pile construction and treatment countermeasures
HUANG Haili
2025 Vol. 0 (9): 122- [
Abstract
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16
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125
Research on application performance of high-resistance-permeability concrete in underground municipal pipeline racks project
LAN Haojue
2025 Vol. 0 (9): 125- [
Abstract
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32
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128
Research on anti-crack technology for concrete construction in high-rise factory buildings
LIN Xiaoxiong
2025 Vol. 0 (9): 128- [
Abstract
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26
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131
Engineering practice and optimization of cement grouting consolidation technology in pile foundation construction of high fill foundation
LI Jun
2025 Vol. 0 (9): 131- [
Abstract
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26
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134
Intelligent temperature control construction and management of vibration concrete for the dam of TB hydropower station
PANG Jucheng
2025 Vol. 0 (9): 134- [
Abstract
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39
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137
Research on durability of concrete structures in marine environments and their protective measures
WANG Qiang
2025 Vol. 0 (9): 137- [
Abstract
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24
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140
Discussion on improving crack resistance performance of highway cement concrete
WANG Jianjun
2025 Vol. 0 (9): 140- [
Abstract
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35
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143
Application progress of red mud in gypsum, cement and concrete
WANG Shanye, et al
2025 Vol. 0 (9): 143- [
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36
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146
Analysis of concrete compressive strength based on 50 mm diameter ultra-small core samples testing
LU Kongzhen
2025 Vol. 0 (9): 146- [
Abstract
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29
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149
Key technologies and quality control for water engineering concrete construction in cold regions in winter
PI Jinyong
2025 Vol. 0 (9): 149- [
Abstract
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21
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152
Construction technology and practice of cement concrete for buildings
MA Zhanlong
2025 Vol. 0 (9): 152- [
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21
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155
Technology for controlling cracks in large volume concrete during construction in building engineering
ZHANG Junshou, et al.
2025 Vol. 0 (9): 155- [
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22
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158
Construction key points and quality control of steel-concrete arch bridges in highway bridge construction
SHI Hua
2025 Vol. 0 (9): 158- [
Abstract
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21
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