8 results about "Erosiveness" patented technology

A foam light soil construction method suitable for an erosion environment relates to the technical field of building construction, and comprises the following steps: constructing an erosion environment foam light soil component analysis model; the type of the erosion environment is obtained and input into the analysis model to obtain foam light soil components matched with the erosion environment; according to the steps of constructing the obtained foam light soil components in the erosion environment and the like, by constructing an erosion environment foam light soil component analysis model, a cementing material, a foaming agent and an admixture can be optimized according to the dynamic proportion of the erosion environment, so that the erosion resistance of the foam light soil is enhanced; and the engineering adaptability in a complex erosion environment is obviously improved.

This invention discloses a method for calculating and evaluating the erosiveness of slag used for converter slag splashing protection, relating to the field of metallurgical technology. The method includes: obtaining the chemical composition of the slag; thermodynamically calculating the Gibbs free energy of the reaction between each component and magnesia-carbon bricks, classifying components as strongly / weakly erosive; and calculating the oxidative erosion capacity Q. ox (Total oxygen content of highly corrosive components) and structural erosion ability Q st (low melting point liquid phase content × basicity coefficient); and a temperature correction factor is introduced. T Finally, the erosivity index Q is calculated. 侵蚀 = T ×[a1×Q ox +a2×Q st ]. Q 侵蚀 Compared with thresholds of 30 and 60, the slag is determined to be low, medium, or high corrosivity, and suggestions are given for direct slag splashing, adjusted slag splashing, or slag dumping. Industrial verification has confirmed that Q... 侵蚀 The corrosion rate was significantly positively correlated with the actual furnace lining corrosion rate (r=0.93), and the corrosion rate decreased by 70-80% after adjusting the slag composition. This invention fills the gap in the quantitative evaluation of slag corrosivity and provides a scientific and simple operational basis for slag splashing protection of the furnace.

The invention discloses a red-layer gypsum rock stratum tunnel anti-erosion and aging deformation supporting structure which comprises an anti-erosion primary supporting layer, a buffering energy absorption layer, a corrugated waterproof isolation layer and a secondary lining layer. The anti-erosion primary support layer is tightly attached to the inner wall of the tunnel in the circumferential direction of the inner wall of the tunnel; the buffer energy absorption layer is arranged on the inner side of the anti-erosion primary support layer; the corrugated waterproof isolation layer is arranged between the anti-erosion primary support layer and the buffer energy absorption layer; the secondary lining layer is arranged on the inner side of the buffering energy absorption layer. The invention further discloses a construction method of the red gypsum rock stratum tunnel anti-erosion and aging deformation supporting structure. Compared with the prior art, the red layer gypsum rock stratum tunnel anti-erosion and aging deformation supporting structure has the advantages that the anti-erosion performance of a tunnel structure is enhanced, tunnel aging deformation is controlled, and tunnel bottom heaving is avoided.

This application relates to a method, apparatus, electronic device, and storage medium for detecting the unevenness of concrete erosion. The method includes: acquiring at least one concrete sample; performing a sound velocity test on the concrete sample to determine a first sound velocity before erosion and a second sound velocity after erosion; determining the degree of damage in each region of the concrete sample based on the first and second sound velocities; wherein the degree of damage includes minor, moderate, and severe damage; and conducting erosion performance testing on a target region with severe damage to determine the erosion unevenness result of the target region. Thus, by utilizing changes in sound velocity, changes in the internal structure of concrete can be intuitively and qualitatively reflected, accurately locating the damage status of different regions of the concrete; and by conducting erosion performance testing on a target region with severe damage to determine the erosion unevenness result, the uneven distribution of internal erosion can be discovered, providing a reliable basis for engineering maintenance and repair decisions.

The invention relates to a test bench (1) for performing corrosion and / or erosion tests, comprising:-a mixing reactor (2) configured to mix newly aggressive particles (7) from a second inlet (22) and a aggressive fluid from a first inlet (21) in order to obtain a flow of a homogeneous particle-fluid mixture (8); -a test chamber (3) configured to contain at least one sample (6) and to test the at least one sample (6) under the action of a mixture (8) from the outlet (11) of the reactor (2) flowing from the inlet (12) to the outlet (13a, 13b) of the chamber (3); -a precipitation system (4) configured to settle the mixture (8) from the outlets (13a, 13b) in order to separate aggressive particles and aggressive fluid for performing the test; -a recirculation network (5) configured to convey the corrosive fluid from the outlet (27) of the system (4) to the first inlet (21).

The invention relates to the technical field of civil engineering materials, and discloses a high-strength fast-curing grouting material suitable for a soft soil stratum and a preparation method of the high-strength fast-curing grouting material. The problems that in the prior art, setting time is long, the requirement for rapid construction is difficult to meet, compressive strength is low, failure is prone to occurring when complex geological stress is borne, volume stability is poor, cracks are generated, permeability and fluidity are insufficient, pores and cracks of a soft soil layer are difficult to fully fill, and in addition, under the chemical erosion environment of sulfate and the like, the effect is poor are solved. The material strength loss is serious, and the durability is poor. The high-performance concrete comprises 46-70 parts by mass of composite gel, 15-25 parts by mass of an active admixture and the balance of a functional additive. Compared with a common grouting material, the grouting material has the advantages that the setting time is shortened by more than 3 times, the compressive strength is improved in a leap manner, the volume is stable, micro-expansion and shrinkage resistance are realized, the permeability is reduced, the slurry flowability is excellent, and the erosion resistance and sulfate erosion resistance are improved.