A rapid determination method of different porosity of porous concrete
A porous concrete, rapid measurement technology, applied in suspension and porous material analysis, measuring device, permeability/surface area analysis, etc., can solve the problems of inaccurate results, single porosity, complicated operation, etc. Short-time, saturated-quality effects
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Embodiment 1
[0071] Preparation of porous concrete samples to be tested. The preparation process is roughly as follows: the raw materials are 42.5 ordinary Portland cement and stones with a particle size range of 2-5mm, set a certain ratio of raw materials and water-cement ratio, and inject them into a mold of 40mm×40mm×40mm after mixing and stirring, and then Put it on the vibrating table, set a certain vibrating frequency and vibrating time, vibrate and form, and after demoulding, maintain under certain conditions.
[0072] Porous concrete specimen wax seal. The specific wax sealing process is as follows: paraffin wax and rosin are prepared in a certain proportion to form a certain viscosity wax liquid, which is gently applied to the side and bottom surface of the porous concrete. The main purpose is to fill the surface pores on the side and bottom.
[0073] figure 1 For vacuuming device. The water tank 1 is filled with water 2 that does not contain air, and the water tank 1 is connec...
Embodiment 2
[0103] Preparation of porous concrete samples to be tested. The preparation process is roughly as follows: the raw materials are 42.5 ordinary Portland cement and stones with a particle size range of 2-5mm, set a certain ratio of raw materials and water-cement ratio, and inject them into a mold of 60mm×60mm×60mm after mixing and stirring, and then Put it on the vibrating table, set a certain vibrating frequency and vibrating time, vibrate and form, and after demoulding, maintain under certain conditions.
[0104] Porous concrete specimen wax seal. The specific wax sealing process is as follows: paraffin wax and rosin are prepared in a certain proportion to form a certain viscosity wax liquid, which is gently applied to the side and bottom surface of the porous concrete. The main purpose is to fill the surface pores on the side and bottom.
[0105] figure 1 For vacuuming device. The water tank 1 is filled with water 2 that does not contain air, and the water tank 1 is connec...
Embodiment 3
[0115] Preparation of porous concrete samples to be tested. The preparation process is roughly as follows: the raw materials are 42.5 ordinary Portland cement and stones with a particle size range of 2-5mm, set a certain ratio of raw materials and water-cement ratio, and inject them into a mold of 130mm×130mm×130mm after mixing and stirring, and then Put it on the vibrating table, set a certain vibrating frequency and vibrating time, vibrate and form, and after demoulding, maintain under certain conditions.
[0116] Porous concrete specimen wax seal. The specific wax sealing process is as follows: paraffin wax and rosin are prepared in a certain proportion to form a certain viscosity wax liquid, which is gently applied to the side and bottom surface of the porous concrete. The main purpose is to fill the surface pores on the side and bottom.
[0117] figure 1 For vacuuming device. The water tank 1 is filled with water 2 that does not contain air, and the water tank 1 is con...
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Abstract
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