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The calculation procedures of the derived theoretical model are compiled by applying the Matlab software, and are employed to analyze the affecting elements of diffusion.
Fracture width is the primary factor considered in low water-cement ration.
（4）The fracture network is very complicated, and the effective factors influencing diffusion are much more; the single fracture model is the basis of building the diffusion model of fracture network, which is the will be the next step of work in the future.
References [1] Babak Nikbakhtan and Morteza Osanloo: Effect of grout pressure and grout flow on soil physical and mechanical properties in jet grouting operations[J].International Journal of Rock Mechanics & Mining Sciences,2009(46):498–505
In Chinese [15] Wenjun Ruan: Research on diffusion of grouting and basic properties of grouts[J].

Introduction The copper-nickel alloy is playing an irreplaceable part in marine engineering for heat condensers, desalination equipment, water supply lines and in other tube applications, due to its excellent physical and mechanical properties, remarkable resistance to seawater corrosion and biofouling [1,2].
In spite of the appropriate properties of the 90Cu-10Ni alloy, instances of failure have been experienced in practice [4,5].
The factors influencing corrosion resistance can be roughly divided into two categories, material factors (chemical composition [8-13], component segregation [14], surface state [15], etc.) and environmental factors (temperature [16], pH [17], flow rate [18], etc.).
The rational procedure of mechanical polishing and optimization of electropolishing parameters are essential factors to get good quality of patterns.
For mechanical polishing, the scratches are often unintentionally induced to the sample surface during grinding or mechanical polishing.

The variations in the moisture content determine the extent to which other physical and mechanical characteristics of concrete, such as the temperature and elasticity properties, impact the UPV of concrete [17].
The main aim of this study is to examine how the utilization of calcined mud recovered from Chorfa dam impacts the physico-mechanical and chemical properties of mortar fiber bundles.
V, Mechanical and physical properties of cement blended with sewage sludge ash, Waste management, 28(12), 2495-2502 (2008). https://doi.org/10.1016/j.wasman.2008.02.019
"Influence of alum sludge ash and ground granulated blast furnace slag on properties of cement mortar."
Effect of sewage sludge ash on mechanical properties, drying shrinkage and high-temperature resistance of cement mortar.

The rock mechanical properties can be the dynamic data and the static data distinguished by the different test ways.
The data generated by the logging test are classified as dynamic rock mechanical properties, and the data provided by the triaxial test and Geological Strength Index (GSI) are classified as static rock mechanical properties.
This paper will set up a new method which integrate the logging test data and the Geological Strength Index value and can be verified by the triaxial test mean, to estimate the rock mechanical properties.
These means can be used to get message of rock mechanical properties.
Hoek-Brown failure can explain low stress area, tensile stress area and the influence aroused by the minimum principal stress affecting of the rock mass strength

affect china’s economic development and social stability.
Including storage conditions, such as stacking method, quantity,ventilation,isolation,etc; Physical properties such as temperature,pressure,state,flash point,ignition point,explosion limit and toxic as well as harmful characteristics ; Degree of equipment in good condition, defect, maintenance and use fixed number of year,etc; Protection conditions such as protection measures,fault handling measures, safety device and logo,etc ; Operating conditions such as technical level, operation errors, etc.; Management conditions like organization,command, coordination,control, planning,etc
(3)Triggers Triggering factors includes human factors, such as incorrect and carelessly operation, psychological factors,biological factors,etc; Management factors, such as improper management, and training as well as commanding mistakes and wrong judgment decision-making,design mistakes,errors, organization arrangement, etc; Natural factors, including the transformation of hazards caused by all kinds of natural conditions and other changes, such as temperature, pressure, humidity, wind, thunder, rain and snow, vibration, earthquake, landslide,etc; Although triggers does not belong to the inherent nature of hazards, it is a external cause for hazards transfer into the accidents, and each type of hazards has a corresponding sensitive trigger factors ; As for flammable and explosive substances, the heat is sensitive trigger, and as pressure vessel, pressure is the sensitive trigger factors.Hazards transform into dangerous state under the action of the trigger which contribute to the accident
Construction the main accident types contain five categories : falling accidents, getting an electric shock, objects strike, mechanical damage and collapse .The main parts of five kinds of accident are the construction of hazards.
Registering the hazards which is likely to affect the construction safety .

Studies also found that the physicochemical factors of the original soil are the most dominant factors influencing the stability of the treated soils [15].
The ideal properties of the proposed material would be flowable, strong, and durable.
Results and Discussion Fluid-State Properties.
The amount of cement and the subsequent development of the cementation totally control the mechanical properties of the hardened RS-based CLSM.
[14] Coastal Development Institute of Technology, Factors Affecting Strength Increase, The Deep Mixing Method, A.A.

Introduction Epoxy resins are extensively employed in several important applications such as adhesives, surface coatings and advanced composites, etc. because of their superior properties such as good mechanical properties, chemical resistance, adhesive and insulating properties etc..
The as-prepared samples were finally sliced for thermal/mechanical property testing.
Fig.1 Impact/tensile strength as a function of the content of SEBSMB Results and Discussions Fig.1 shows the effect of addition of the reactive block copolymer SEBSMB on the mechanical properties of cured epoxy resin.
The storage modulus and loss factor of the cured samples with various content of SEBSMB were shown in Fig.2 and Fig.3.
It means that the Tg of the samples was seldom affected by the addition of the reactive block copolymer, unlike the system modified with flexible Fig.3 Loss factor of the cured resin with various content of SEBSMB as a function of temperature Fig.2 Storage modulus of the cured resin with various content of SEBSMB as a function of temperature block copolymer PEO-PPO-PEO or rigid block copolymer PS-b-PMMA [11].

Make full use of the absorption function, ion exchange, and other special properties which zeolite powder has.
However, there is no single way for the comprehensive evaluation of these three properties of self-compacting concrete.
Effect of sand ratio, binder material quantity and components of mix material together on the concrete flow and filling properties was studied.
Among them, the electric flux of mix ratio 6 # was smallest, combined with its overall performance such as working performance, mechanical properties, it was recognized as the construction mix ratio
Known from production sampling test results and concrete placement situation, construction performance properties, mechanical properties and durability of C50 self-compacting finish concrete for three-span rigid frame arch bridge met the design requirements of high-speed railway and the appearance requirements of fair-faced finish concrete.

The tests for physical and mechanical properties of lightweight aggregate concretes (LWAC) were conducted in terms of workability, compressive strength, apparent density, abrasion resistance and absorption.
Various physical properties of different types of LA are shown in Table 2.
Physical Properties of Lightweight Aggregates Properties Pumice Cellular LA MTEC LA Bulk Specific Gravity (SSD) 1.13 1.25 0.87 Absorption (%) 53.13 32.49 9.91 Fineness Modulus 7.25 6.22 7.60 Maximum Size (mm) 19.00 9.50 19.00 Elongation Index (%) 11.60 8.33 6.46 Flakiness Index (%) 7.20 36.37 0.62 For the second part, bottom ash was used as fine aggregate to replace the river sand.
When only the type of aggregate was changed while the other components such as binder (cement and fly ash) content, fine aggregate and w/b were kept constant, it can be concluded that the type of lightweight aggregate was the main factor affecting the compressive strength of LWAC.
The main key factor affecting the compressive strength of LWAC was the type of LA used.

Many factors affect the road adhesion coefficient and these factors are constantly changing is difficult to get.
Braking force of the brake refers to overcome friction torque required force, we denoted it as Pu, is one of the factors affecting the braking distance of the car.
Therefore, initial braking speed is one of the key factors affecting the automobile braking distance.
Of course, there are still many other factors will affect adhesion coefficient.
In summary, factors affecting the braking distance of the car are brake force, initial velocity, time and road adhesion coefficient.