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2025 Vol. 0, No. 10
Published: 2025-10-10
1
Research on improving performance of phosphogypsum-based excess-sulfate phosphorus slag cement by humid heat regulation
KE Zhuang, et al
Phosphogypsum-based excess-sulfate phosphorus slag cement (PEPSC) has the problems of low early strength and slow strength development. In this study, phosphogypsum (PG), phosphor slag, slag and Portland cement clinker are used as raw materials to prepare PEPSC by optimizing the mixing ratio and combining it with a suitable humid heat curing process. The results show that compared with conventional curing, the humid heat method significantly improves the activity of phosphor slag, accelerates the formation of hydration products, which increases the 28-day compressive strength of PEPSC by about 40% and effectively improves its strength development rate. In this PEPSC system, PG acts as an aggregate component, closely binding hydrated products such as flocculent C-S-H gel and acicular ettringite to form a complex three-dimensional network framework structure, thereby significantly enhancing the mechanical properties of the materia
2025 Vol. 0 (10): 1- [
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7
Experimental study on use of electrolytic manganese slag as an alternative to ammonia water for nitrogen oxide removal in cement industry
MAO Zuobin, et al.
This paper takes the pre-treated electrolytic manganese slag as the research object and feeds it into a 5 000 t/d Portland cement clinker production line to explore its influence on the nitrogen oxide content in the smoke chamber during the reaction process and analyze the changes in the later performance of the clinker. The results show that with the input of electrolytic manganese slag, the NOx content in the flue gas of the cement kiln system has a significant reduction trend. Electrolytic manganese can improve the burnability of cement raw material and promote the formation of C3S mineral crystals. The water requirement of normal consistency of cement clinker, the setting time and other properties all meet the standard requirements, but the mechanical properties of clinker are slightly reduced.
2025 Vol. 0 (10): 7- [
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25
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11
Technological innovation and digital-intelligent empowerment facilitate ultra-low emissions in cement industry
DUAN Zhenhong
2025 Vol. 0 (10): 11- [
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25
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15
Design and selection of SCR denitrification technology for cement under medium dust and high temperature conditions
Hot!
Yan Guilin, et al
2025 Vol. 0 (10): 15- [
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32
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19
Study on cold-state motion characteristics of raw meal in KDS calciner
LI Jialin, et al
2025 Vol. 0 (10): 19- [
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13
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24
Study on technological transformation practice of energy conservation and consumption reduction for raw meal grinding system
Hot!
DONG Jinkui, et al.
2025 Vol. 0 (10): 24- [
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30
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28
Application of aggregate secondary products in cement clinker base
ZHOU Jie, et al.
2025 Vol. 0 (10): 28- [
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28
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30
Analysis of impacts of time-of-use electricity price reform on cement industry and response strategies
LI Yutian
2025 Vol. 0 (10): 30- [
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22
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34
Influence of cooling methods on grindability and activity of steel slag
LUO Fan
2025 Vol. 0 (10): 34- [
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31
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38
Analysis of energy-saving and emission-reduction technology practice for 7 200 t/d clinker production line
Hot!
LIU Dongcan, et al
2025 Vol. 0 (10): 38- [
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28
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42
Design and application of palletizing system for bagged cement
LI Yanjun
This paper analyzes the present situation and common palletizing devices of bagging cement palletizing, and puts forward the double robot palletizing system. The automatic pallet palletizing system of bagging cement is realized by means of the cement bag conveying system, the double robot palletizing system, the palletizing conveying system and the whole process information tracing system. The system has been used in several fields of Conch Cement, which effectively improves the palletizing efficiency and reduces the personnel input, and has high promotion value in the field of palletizing technology
2025 Vol. 0 (10): 42- [
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22
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44
Brief analysis of installation and control system for HFCG roller press
HE Jinxin
2025 Vol. 0 (10): 44- [
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22
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47
Information management and security protection planning design of industrial control network in cement plant
LIU Jun
2025 Vol. 0 (10): 47- [
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26
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50
Renovation practice of grate cooler and the waste heat power generation equipment
Hot!
WANG Peng, et al.
2025 Vol. 0 (10): 50- [
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25
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52
Some thoughts on determination of chloride ions in cement by ammonium thiocyanate method
XU Rongcong, et al
2025 Vol. 0 (10): 52- [
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26
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55
Influence of ammonium salts on physicochemical properties of fly ash
LI Duanle, et al
In order to study the influence of ammonium salt on the physical and chemical properties of fly ash (FA) and enhance the application of denitrified fly ash in the cement industry, different proportions of ammonium bisulfate (ABS) (0.6%, 1.0%, 2.0%, 3.0%) were added to the fly ash, and the ammonium salt was adhered to the fly ash particles through high-temperature melting. The variations of fineness, specific surface area, particle size distribution, microscopic morphology and pore structure of FA under different ABS contents were investigated, and the fluidity and pozzolanic activity of FA were tested. The results indicated that the incorporation and adhesion of ABS increased the 45 μm and 85 μm sieve residues, particle size and pore size of fly ash, reduced the specific surface area and total pore volume of fly ash, but did not significantly affect the particle morphology of fly ash. The adhesion of ABS increased the angle of repose of FA, reduced its fluidity, and slightly decreased the pozzolanic activity (<5%).
2025 Vol. 0 (10): 55- [
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20
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60
Study on action mechanism of limestone powder dosage and fineness on fly ash high-performance concrete
ZENG Wen
In order to improve the comprehensive utilization of limestone powder, this paper investigates the changes in the working properties, compressive strength, pore structure and hydration products of fly ash concrete by changing the admixture and fineness of limestone powder. The results show that compared with the test group without limestone powder, the 10% admixture of limestone powder can improve the slump and expansion of concrete, improve the pore structure of hardened paste, and increase the 7 d and 28 d strength by 9.5% and 6.0%. Finer limestone powder can promote the hydration reaction process of concrete and increase the compressive strength of concrete, but the specific surface area of 650 m2/kg will have an adverse effect on working performance of concrete.
2025 Vol. 0 (10): 60- [
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15
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65
Study on the influence of composite activator on the performance of multi-component solid waste cementitious material
QU Jiahao, et al.
The purpose of this paper is to study the effect of composite activator on multi-component solid waste cementitious materials. Water glass composite Al2(SO4)3 and gypsum composite Ca(OH)2 activator were used to prepare multi-component solid waste cementitious materials, and their effects on compressive strength and microstructure were analyzed. The results show that compared with single activator, the combination of two activators is more conducive to improving the compressive strength of multi-component solid waste cementitious materials. Its hydration products are composed of quartz, calcite, orthorhombic calcium zeolite, CaSO4, Na2SO4, C-S-H, a small amount of AFt and so on.
2025 Vol. 0 (10): 65- [
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22
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69
Analysis of concrete quality accidents caused by lime particles mixed into slag powder
LIU Chaoqi, et al.
2025 Vol. 0 (10): 69- [
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17
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71
Study on mix proportion optimization scheme of prestressed concrete considering honeycomb-pockmarked surface and slump loss
WEI Guowu, et al
2025 Vol. 0 (10): 71- [
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21
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77
Construction methods of building decoration and renovation under green construction concept
HU Xiaoshuang
2025 Vol. 0 (10): 77- [
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30
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80
Practice of concrete pouring quality control technology based on intelligent monitoring in construction
HE Jin
2025 Vol. 0 (10): 80- [
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19
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83
Study on construction quality control of concrete lining project for intercepting ditch in Weishanhu Reservoir entry flood control channel
ZHANG Fengyi
2025 Vol. 0 (10): 83- [
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18
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86
Study on on-site assembly construction technology of prefabricated prestressed concrete bridges
LIU Yizhe
2025 Vol. 0 (10): 86- [
Abstract
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24
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89
Application of intelligent construction technology in curing of cement-based materials for building construction
SONG Jing
2025 Vol. 0 (10): 89- [
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22
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92
Influence of silicone coating on permeability of concrete
GE Guixi, et al
2025 Vol. 0 (10): 92- [
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21
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95
One-time paving construction technology and construction performance evaluation of cement concrete bridge deck pavement
HE Di
2025 Vol. 0 (10): 95- [
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21
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98
Study on durability of cement-modified sandy soil subgrade in high-temperature and rainy areas
LUO Wenjie, et al
2025 Vol. 0 (10): 98- [
Abstract
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22
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101
Study on self-leveling performance control technology of self-compacting concrete in bridge construction
ZHOU Dejing
2025 Vol. 0 (10): 101- [
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21
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104
Study on temperature control technology and crack control methods of mass concrete
ZHANG Zhiguang
2025 Vol. 0 (10): 104- [
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22
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107
Application of BIM technology in architectural fair-faced concrete with artistic texture of National Archives of Publications and Culture
ZHENG Dong, et al
2025 Vol. 0 (10): 107- [
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24
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110
Crack control technology of cement concrete in expressway bridge and road construction process
PANG Hao
2025 Vol. 0 (10): 110- [
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21
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113
Study on application of cement mortar masonry slope in ditch desilting project
WU Chenyang, et al
2025 Vol. 0 (10): 113- [
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23
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116
Analysis of compressive performance of concrete with high volume iron tailings-based aluminum-phase admixture
ZHOU Fang
2025 Vol. 0 (10): 116- [
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20
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119
Analysis of influencing factors of concrete strength testing by core drilling method
TU Haiqing
2025 Vol. 0 (10): 119- [
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27
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122
Analysis of key factors for quality control of concrete strength in construction engineering management
LUO Changding
2025 Vol. 0 (10): 122- [
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27
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125
Analysis of roller-compacted concrete construction technology for reservoir dam
JIANG Enyu
2025 Vol. 0 (10): 125- [
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22
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128
Quality inspection and test technology for concrete grouted sleeve connection
LIU Guodong
2025 Vol. 0 (10): 128- [
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20
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131
Study on quality control of concrete cut-off wall in risk elimination and reinforcement project of small and medium-sized reservoirs
LU Mingxing
2025 Vol. 0 (10): 131- [
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21
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134
Test and detection methods of concrete raw materials and quality control analysis in construction engineering
ZHOU Yuchun
2025 Vol. 0 (10): 134- [
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15
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137
Application of electromagnetic induction detection technology for reinforcement cover thickness of concrete structure entity
XIANG Fei, et al.
2025 Vol. 0 (10): 137- [
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17
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140
28 d strength prediction of road reclaimed concrete considering dosages of fly ash and silica fume
TIAN Xiaofeng, et al
2025 Vol. 0 (10): 140- [
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17
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143
Key points of concrete strengthening construction technology for prefabricated building with PC components
ZHANG Zhiwei
2025 Vol. 0 (10): 143- [
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19
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146
Application of intelligent concrete curing technology in bridge pier climbing form construction
DING Chunhua
2025 Vol. 0 (10): 146- [
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22
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149
Study on concrete fracture and protection technology in high-altitude cold saline-alkaline area
JIANG Ting
2025 Vol. 0 (10): 149- [
Abstract
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17
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152
Research progress on cement-based capillary crystalline waterproofing materials
ZHANG Yongkang, et al
2025 Vol. 0 (10): 152- [
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23
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155
Study on mechanical property improvement and engineering application of recycled concrete
XIANG Xin
2025 Vol. 0 (10): 155- [
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22
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158
Analysis of influence of foamed concrete application on mechanical behavior of prefabricated metro station
TANG Jian, et al
2025 Vol. 0 (10): 158- [
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18
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