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Methods for Inhibition of Fluidity Loss of Concrete Mixed with Superplasticizers Zhu Wenxian1,2,a, Sun Zhenping1,b*, Liu Yi1,c and Li Dangyi 3,d 1 Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, Tongji University, Shanghai 201804, China 2 Shanghai Zhongcai Engineering Testing Co.
As is shown in studies and engineering practices, the effect of several kinds of chemical admixtures on slump loss is as follows: superplasticizers > high range water reducing agent > common water reducing agent > air-entraining water-reducing agent > retarding water reducer. [7] The effect of three types of superplasticizers on Zeta potential of cement particles and slump loss of fresh concrete has been studied.
Engineering Measures.

According to the Practical Guide for the rights of people with disabilities, in Portugal any distinction, exclusion, or restriction based on the disability that has as an objective or effect to impede or null recognitions, considering comparative terms of equality conditions, will reduce human rights and fundamental liberties in the political, economic, cultural, civil contexts [5].
However, just a minority of medical engineers and designers are disabled themselves [5].
The reality is that wastefulness is a sensitive issue as it exists a common frustration among disabled individuals and those who develop products (e.g., designers, engineers, CEOs) furthermore since inclusivity and accessibility areas in fashion are still underinvested, uninterested, compared with other mainstream consumer markets [8].
Hölttã-Otto, Identifying Customer Needs: Disabled Persons as Lead Users, in ASME 2006 International Engineering Technical Conferences and Computers and Information in Engineering Conference, (2006), pp. 243–251 [4] S.

The research on the performance of asphalt mastics modified by mineral fillers Xiaolong CHENa, Yongsheng SUNb, Yuexin HANc, Bin ZHANG College of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China acxl390@163.com, bdongda008@163.com, chanyuexin@mail.neu.edu.cn Key words: mineral additive, modified asphalt, high & low temperature performance, temperature susceptibility Abstract：For a long time, the mineral additive was regarded as inert filler which had no reaction with the asphalt, so does the concrete mix.
The asphalt used in this research was LH-90 one for heavy traffic volume , which is accorded with engineering requirements of JTG F40-2004[3].
Table 1 The fineness of four types of the mineral materials Mineral material Maximum particle size(μm) Average particle size(μm) diatomite 70 11.75 kaolin 6 0.48 Ca-bentonite 25 5.72 Na-bentonite 14 2.83 Table 2 Results of base asphalt paving performance testing Property index Units Engineering requirements Test results Penetration （100g，5s） 30°C 0.1mm -------- 147.1 25°C 80---100 83.8 15°C -------- 24.1 R Dimensionless ≥0.997 0.9997 Penetration index PI Dimensionless -------- -1.7382 Equivalent softening point T800 °C -------- 43.8340 Equivalent breaking point T1.2 °C -------- -10.8587 Softening point TR&B（5°C/min） °C 42-45 44.2 15°C ductility （5cm/min） cm -------- 11.6 Experimental.
Said: On mineralogical composition of filler and performance of asphalt concrete, International Journal of Pavement Engineering, Vol. 10, (2009),p.299 [9] Saeed Ghaffarpour Jahromi, Effects of nanoclay on rheological properties of bitumen binder, Construction and Building Materials, No.23 (2009), p.2894

Research on the Method of GPS Height Conversion Based on Terrain Correction Yachun Mao, Xiang Huang, Junyu Chen, Qun He, Hongbin Ma School of Resources and Civil Engineering of NEU Shenyang, China neu_hx@163.com, Neu_cjy@163.com Keywords:GPS height conversion; terrain correction; singular integra; fitting accuracy Abstract.In this paper, through the surface of polynomial fitting precision analysis, obtains fitting after converting precision for normal height is mainly affected by the rate of change vertical deflection and higher order terms—also influenced by local terrain correction.
Engineering Example Analysis Taking a mountainous area as an example(Figure 2).
Terrain correction of the GPS height fitting model and precision analysis of engineering survey data processing [J].2007, 10
How accurately can we determine orthometric height differences from GPS and geoid Data [J], Journal of surveying engineering, February 2003.

Holly, “FRP Composites and their Using in the Construction of Bridges,” in Procedia Engineering, Elsevier Ltd, 2016, pp. 477–482. doi: 10.1016/j.proeng.2016.08.665
Student, “Strengthening of Reinforced Concrete Beams using FRP Technique: A Review,” International Journal of Engineering Science and Computing, vol. 7, no. 6, pp. 13199–13213, 2017, [Online].
Smith, “Debonding failures in FRP-strengthened RC beams: Failure modes, existing research and future challenges,” in Composites in Construction: A reality, ASCE - American Society of Civil Engineers, 2001, pp. 139–148. doi: 10.1061/40596(264)16
Al-Negheimish, “Effect of shear-span/depth ratio on debonding failures of FRP-strengthened RC beams,” Journal of Building Engineering, vol. 32, Nov. 2020, doi: 10.1016/j.jobe.2020.101771

Preparation and Adsorption Properties of Rod MgNiAl-LDH KE Guojun1,a, TAN Hongjun1,b, YANG Pengfei2,c*, ZOU Pinyu1,d 1School of Civil Engineering, University of South China, Hengyang, Hunan 421001, China 2School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China akegj320@sina.com, bthj0505123@qq.com, cypengfei2008@126.com, d962687718@qq.com Keywords: Hydrotalcite; Preparation; Adsorption; Chloride ion Abstract: Magnesium-nickel-aluminum ternary hydrotalcite with large specific surface area was prepared by hydrothermal method using magnesium nitrate, nickel nitrate and aluminum nitrate as raw materials and urea as precipitant.
Colloids & Surfaces A Physicochemical & Engineering Aspects, 2012, 415(48):195-201
Fine chemical engineering, 2017, 34(10):1107-1113.

Canseco2,b 1,2Department of Civil Engineering, University of San Carlos – Talamban Campus, Nasipit Talamban, Cebu City, 6000, Philippines acharmane.esper@gmail.com, bharcanseco@usc.edu.ph Keywords: Pineapple Leaf Fiber, Alkali Treatment, Fiber-Reinforced Composites, ANOVA Abstract.
Acknowledgments The authors would like to thank the University of San Carlos and Department of Science and Technology - Science Education Institute (DOST-SEI) through the Engineering Research and Development for Technology (ERDT) Program for financial support and assistance to complete this work.
Esper is a graduate student at the University of San Carlos, Cebu City, Philippines and an applications engineer at CIM Technologies, Cebu City, Philippines.
Her undergraduate thesis focused on materials engineering.

Investigation the Intensity of Heating of the Isolation Material of an Electrical Wire KATUNIN Albert1,a, KULAKOV Oleg1,b*, ROIANOV Oleksii1,c, MYKHAILOVSKA Yulya1,d 1National University of Civil Defence of Ukraine, 94, Chernishevska str., Kharkiv, Ukraine, 61023 akatunin@nuczu.edu.ua, bkulakov_ov@nuczu.edu.ua, croianoff@nuczu.edu.ua, dmykhailovska@nuczu.edu.ua Keywords: current loading, electrical wire, intensity of heating, material of electrical сore, material of the isolation, maximum allowed current.
Konovalenko, Definition of accumulated operating time distributions for a cable product insulation within the defined life cycles 2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering.
IOP Conference Series: Materials Science and Engineering. 708/1 (2019) 012065
Key Engineering Materials Submitted. 954 (2023) 125–133
Journal of Engineering Physics and Thermophysics. 91/2 544–555

Farrukh Arif3,c* 1Department of Urban & Infrastructure Engineering, NED University of Engineering &Technology, Karachi, Sindh, Pakistan 2,3Department of Civil Engineering, NED University of Engineering &Technology, Karachi, Sindh, Pakistan anazhar@cloud.neduet.edu.pk, brahyabakhan@cloud.neduet.edu.pk, cfarrukh@cloud.neduet.edu.pk Keywords: Sustainable development, urban systems, environmental preservation, sustainable city elements, sustainability challenges.

Effect of fine sand on the rheology of fresh cement asphalt mortar Jianwei Peng1,2,a; Dehua Deng1,2,b; Qiang Yuan1,2,c; Lei Fang1,2,d; Yong Wang1,2,e 1 School of Civil Engineering, Central South University, Changsha, 410075, China 2 National Engineering Laboratory for High Speed Railway Construction, Changsha, 410075, China a515709546@qq.com, bdlx0216@163.com, c1453694067@qq.com, dfangleixtu@126.com, e514065457@qq.com Keywords: sand; cement asphalt mortar; rheology; paste film thickness Abstract.
References [1] Zuo JQ, Jiang QB, Fu DZ: Railway Engineering, Vol.9 (2005): p.96–98
[8] Wang Fazhou, Wang T ao, Hu Shuguang, et al: Engineering Journal of Wuhan University, Vol. 41(4) (2008): p.69-72