A Simulated Test Method for the Density of Mixed Coarse Aggregate
A simulation test, coarse aggregate technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of difficult monitoring of mixed coarse aggregate mesoscopic structural characteristics, lack of mixed coarse aggregate, coarse aggregate grade Problems such as long configuration cycle
Inactive Publication Date: 2016-10-26
SOUTHEAST UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The applicant analyzed the above-mentioned indoor test method for the density of mixed coarse aggregates and found the following defects: (1) In the process of coarse aggregate gradation design, it is necessary to measure the density of a large amount of mixed coarse aggregates, resulting in a cycle of coarse aggregate gradation design process. Long, and waste a lot of manpower and material resources; (2) Lack of intuitive and clear indicators to evaluate whether the mixed coarse aggregate has reached the optimal compaction state; (3) It is difficult to monitor the mesoscopic structural characteristics of the mixed coarse aggregate during the compaction process
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0071] According to the technical solution of the present invention, this embodiment provides a simulation test method for the density of mixed coarse aggregates, taking 19-31.5mm coarse aggregates and 9.5-19mm coarse aggregates produced in Ankang Yinghu with a total mass of 6kg The composition of the mixed coarse aggregate (the mass ratio of 19-31.5mm coarse aggregate and 9.5-19mm coarse aggregate is 100:50) is taken as an example to illustrate the implementation steps of the simulation test method for the density of mixed coarse aggregate:
[0072] (1) Construction of physical model of mixed coarse aggregate
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a simulation testing method for mixed coarse aggregate compactness. The simulation method includes setting a mixed coarse aggregate physical model, subjecting the mixed coarse aggregate compactness to simulation testing including testing of basic parameters, simulation generation of a feed barrel and the mixed coarse aggregate, setting micromechanic parameters of the physical model, simulating vibration compacting process of the mixed coarse aggregate physical model, and calculating the mixed coarse aggregate compactness. The simulation testing method can quickly and accurately predict the mixed coarse aggregate compactness and reshow change laws of microscopic structure characteristics in the process of compacting the mixed coarse aggregate.
Description
Technical field [0001] The invention belongs to the field of traffic and civil engineering, and relates to a simulation test method for the density of mixed coarse aggregates. The mixed coarse aggregates are mixed by a plurality of different specifications of coarse aggregates according to a certain gradation. The invention is based on PFC 2D The software platform can conveniently monitor the changes of meso-structure characteristics during the compaction process of the mixed coarse aggregate, and quickly and accurately predict the density of the mixed coarse aggregate, which can be used to assist the optimization of the mix ratio of road materials to improve material design Efficiency, reduce design costs. Background technique [0002] In the field of traffic and civil engineering, road materials are usually composed of coarse aggregate, fine aggregate and binder. Among them, the content of coarse aggregate is more than 50%. Therefore, the gradation of coarse aggregate is import...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 孙璐任皎龙
Owner SOUTHEAST UNIV
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
