CN103278461A - Evaluation device of concrete components - Google Patents

Abstract

The invention belongs to the technical field of building operations, relates to an evaluation device of concrete components, which is characterized in that a 50 L capacity line is arranged below a feeding opening, a first weight sensing device is fixed below the capacity line, a double cone roller screen composed of a rotary screen with 0.5 mm screens and a rotary screen with 0.08 mm screens is fixedly connected to the lower end of a feed hopper, and a motor is fixedly connected to the right end of the rotary screen with 0.08 mm screens; a second discharging opening and a first discharging opening are fixed at the end opening parts of the left ends of the rotary screen with 0.5 mm screens and the rotary screen with 0.08 mm screens; the first discharging opening and the second discharging opening are fixedly connected with a second weight sensing device; a discharging opening is formed in the lower end of the second weight sensing device; a liquid discharging opening is formed in the bottom of the rotary screen with 0.08 mm screens; and the spectroscopic detector is fixedly connected with the first weight sensing device. The device provided by the invention has a simple structure, the evaluation method is simple, the theory is reliable, the measuring result is accurate, and the operation is convenient.

Description

A kind of identification apparatus of concrete composition

Technical field:

The invention belongs to technical field of building construction, relate to the on-the-spot equipment, particularly a kind of identification apparatus of concrete composition of identifying the concrete composition in a kind of work progress.

Background technology:

Along with the develop rapidly that China's building trade is come, various new construction technologies and new machinery constantly emerge, and simultaneously the building operation quality have also been had higher requirement.Under to the more and more important background of Commercial Concrete demand, have not yet to see in the work progress on-the-spot composition to Commercial Concrete and carry out method for measuring and equipment thereof, be the key factor that influences concrete workability, intensity, permanance as the concrete match ratio, if the station error of merchant's concrete causes the match ratio imbalance of concrete, will cause concrete off quality, light then influence normally using and constructing of engineering, heavy then can cause security incident, directly have influence on construction quality and people's the security of the lives and property.So, design a kind of technical matters and machine, make it can be at the construction field (site) irregularly gather sample to concrete, determining concrete mix and additive component content thereof rapidly and accurately, and in time adjust to guarantee the building operation quality.

Summary of the invention:

The objective of the invention is to overcome the shortcoming that prior art exists, seek to design the identification apparatus that a kind of concrete on construction site composition is provided, overcome the blind area of the fubaritic concrete composition in working-yard in the prior art, by controlling concrete composition and quality, thereby guarantee the building operation quality effectively.

To achieve these goals, agent structure of the present invention comprises the rotary screen of charging aperture, capacity line, the first weight induction device, feeder hopper, 0.5mm screen cloth, rotary screen, liquid discharge outlet, discharge gate, the second weight induction device, first discharge port, second discharge port, exterior display device, spectrum detection instrument and the motor of 0.08mm screen cloth; The below of charging aperture is provided with 50L capacity line, and the below of capacity line fixedly is shaped on the first weight induction device, and the concrete weight that the first induction installation measurement of inductance is poured into from charging aperture is also sent concrete into feeder hopper, and the capacity of feeder hopper is 50L; The bitubular roller screen that the rotary screen of the fixedly connected 0.5mm of the being shaped on screen cloth in feeder hopper lower end and the rotary screen of 0.08mm screen cloth constitute, the rotary screen of the rotary screen of 0.5mm screen cloth and 0.08mm screen cloth sifts out stone and the sand in the concrete respectively; 0.08mm the fixedly connected motor that is shaped on of the right-hand member of the rotary screen of screen cloth; 0.5mm the left end port of the rotary screen of the rotary screen of screen cloth and 0.08mm screen cloth fixedly is shaped on second discharge port and first discharge port respectively, the stone that the rotary screen of second discharge port discharge 0.5mm screen cloth sifts out, the sand that the rotary screen of first discharge port discharge 0.08mm screen cloth sifts out; First discharge port is fixedlyed connected with the second weight induction device with second discharge port, the sand that second weight induction device measurement of inductance first discharge port and second discharge port are discharged and the weight of stone; The second weight induction device lower end fixedly is shaped on discharge gate, and discharge gate is discharged sand and stone; Be shaped on liquid discharge outlet 0.08mm open the bottom of the rotary screen of screen cloth, excess liquid is discharged by liquid discharge outlet; Spectrum detection instrument is fixedlyed connected additive composition and the ratio that contains in the detection concrete with the first weight induction device; The first weight induction device and the second weight induction device carry out computational analysis to the computing machine in the exterior display device according to the computation process of setting with the data transmission that records, and realize the scene of concrete composition is identified.

The present invention realizes that the concrete processing step that the scene of concrete admixture and concrete composition is identified is:

(1), extract the mixed concrete sample in working-yard, in spectrum detection instrument, adopt existing spectrographic method analysis to draw composition and the ratio of the additive that exists in the concrete earlier;

(2), the concrete sample of the working-yard that step (1) is obtained is poured in the feeder hopper of fixed capacity 50L, obtain concrete weight by the first weight induction device, pour wash-down water into from charging aperture simultaneously concrete is washed away, obtain the potpourri of concrete and water;

(3), the potpourri of concrete and water is filtered out stone and sand by the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth respectively, and measure the weight of saturated suction stone and saturated suction sand respectively by the second weight induction device;

(4), the mass transport with the concrete that obtains, saturated suction stone and saturated suction sand arrives exterior display device, calculate the weight of stone in the concrete, sand, cement and water by the computing machine in the exterior display device, finish the scene of concrete composition is identified.

The detailed process that computing machine involved in the present invention calculates is: the natural moisture content of stone and sand is respectively W _G, W _S, apparent density is respectively ρ ' _G, ρ ' _S, stone and the sand apparent density under drying regime is respectively ρ _G, ρ _S, then the volume of stone and sand is respectively:

$V_G=\frac{M_G}{{\mathrm{\ρ}}_G^{\′}}=\frac{1+W_G{\mathrm{\ρ}}_G}{{\mathrm{\ρ}}_G+W_G{\mathrm{\ρ}}_G}{M}_G=A_1{M}_G---\left(1\right)$

$V_S=\frac{M_S}{{\mathrm{\ρ}}_S^{\′}}=\frac{1+W_S{\mathrm{\ρ}}_S}{{\mathrm{\ρ}}_S+W_S{\mathrm{\ρ}}_S}{M}_S=B_1{M}_S---\left(2\right)$

M in the formula _G, M _SBe respectively stone and the sand weight under state of nature; With formula (1) and formula (2) substitution formula (3) M _C+ M _W+ M _G+ M _S=M and formula (4) V _C+ V _W+ V _G+ V _SAmong=the V, obtain formula (5) and formula (6):

$V_c=\frac{M-V-(1-A_1{M}_G)-(1-B_1)M_S}{{\mathrm{\ρ}}_C-1}---\left(5\right)$

V _W=V-A ₁M _G-B ₁M _S-V _C (6)

M wherein _C=ρ _CV _C, M _W=ρ _WV _W, M _CBe cement weight, ρ _CBe cement density, V _CBe cement volume, M _WBe the weight of water, ρ _WBe the density of water, V _WVolume for water; Consider the existence of the saturated water absorption after the content of stone and sand and water dash, derive M _G, M _SScreen over-size M ' after dashing with water _G, M ' _SRelation, if saturated water absorption and the silt content of stone is respectively W _G' and Q _G, saturated water absorption and the silt content of sand are respectively W _S' and Q _S, then to stone definition silt content be

So, obtain formula (7):

$M_G=\frac{1+W_G}{(1+W_G^{\′})(1-Q_G)}{M}_G^{\′}=A_2{M}_G^{\′}---\left(7\right)$

In like manner, obtain formula (8):

$M_S=\frac{1+W_S}{(1+W_S^{\′})(1-Q_S)}{M}_S^{\′}=B_2{M}_S^{\′}---\left(8\right)$

Formula (7) and formula (8) substitution formula (5) and formula (6) are obtained

$V_C=\frac{M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}}{{\mathrm{\ρ}}_C-1}$

V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

Then can draw the computing formula of each component in the concrete, namely

$M_C=\frac{{\mathrm{\ρ}}_C}{({\mathrm{\ρ}}_C-1)}[M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}]$

M _W=V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

M _G=A ₂M′ _G

M _S=B ₂M′ _S。

The present invention compared with prior art, its apparatus structure is simple, authentication method is easy, principle is reliable, measurement result is accurate, and is easy to operate, can be widely used in the building construction process evaluation and measurement to the concrete composition.

Description of drawings:

Fig. 1 is agent structure principle schematic of the present invention.

Fig. 2 is the cross section structure principle schematic of the bitubular roller screen that the present invention relates to.

Embodiment:

Also be described further by reference to the accompanying drawings below by embodiment.

Embodiment:

The agent structure of present embodiment comprises the rotary screen 5 of charging aperture 1, capacity line 2, the first weight induction device 3, feeder hopper 4,0.5mm screen cloth, rotary screen 6, liquid discharge outlet 7, discharge gate 8, the second weight induction device 9, first discharge port 10, second discharge port 11, exterior display device 12, spectrum detection instrument 13 and the motor 14 of 0.08mm screen cloth; The below of charging aperture 1 is provided with 50L capacity line 2, and the below of capacity line 2 fixedly is shaped on concrete weight that the first weight induction device, 3, the first induction installations, 4 measurement of inductances pour into from charging aperture 2 and concrete is sent into feeder hopper 4, and the capacity of feeder hopper 4 is 50L; The bitubular roller screen that the rotary screen 5 of the fixedly connected 0.5mm of the being shaped on screen cloth in feeder hopper 4 lower ends and the rotary screen 6 of 0.08mm screen cloth constitute, the rotary screen 5 of 0.5mm screen cloth and the rotary screen 6 of 0.08mm screen cloth sift out stone and the sand in the concrete respectively; 0.08mm the fixedly connected motor 14 that is shaped on of the right-hand member of the rotary screen 6 of screen cloth; 0.5mm the left end port of the rotary screen 5 of screen cloth and the rotary screen 6 of 0.08mm screen cloth fixedly is shaped on second discharge port 11 and first discharge port 10 respectively, the stone that the rotary screen 5 that second discharge port 11 is discharged the 0.5mm screen cloth sifts out, the sand that the rotary screen 6 that first discharge port 10 is discharged the 0.08mm screen cloth sifts out; First discharge port 10 is fixedlyed connected with the second weight induction device 9 with second discharge port 11, the sand that second weight induction device 9 measurement of inductances, first discharge port 10 and second discharge port 11 are discharged and the weight of stone; The second weight induction device, 9 lower ends fixedly are shaped on discharge gate 8, and discharge gate 8 is discharged sand and stone; Be shaped on liquid discharge outlet 7 0.08mm open the bottom of the rotary screen 6 of screen cloth, excess liquid is discharged by liquid discharge outlet 7; Spectrum detection instrument 13 is fixedlyed connected additive composition and the ratio that contains in the detection concrete with the first weight induction device 3; The first weight induction device 3 and the second weight induction device 9 carry out computational analysis to the computing machine in the exterior display device 12 according to the computation process of setting with the data transmission that records, and realize the scene of concrete composition is identified.

Present embodiment is realized the concrete processing step that identify at concrete admixture and concrete composition scene:

(1), extract the mixed concrete sample in working-yard, in spectrum detection instrument 13, adopt existing spectrographic method analysis to draw composition and the ratio of the additive that exists in the concrete earlier;

(2), the concrete sample of the working-yard that step (1) is obtained is poured in the feeder hopper 4 of fixed capacity 50L, obtain concrete weight by the first weight induction device 3, pour wash-down water into from charging aperture 1 simultaneously concrete is washed away, obtain the potpourri of concrete and water;

(3), the potpourri of concrete and water is filtered out stone and sand by the rotary screen 5 of 0.5mm screen cloth and the rotary screen 6 of 0.08mm screen cloth respectively, and measure the weight of saturated suction stone and saturated suction sand respectively by the second weight induction device 9;

(4), the mass transport with the concrete that obtains, saturated suction stone and saturated suction sand arrives exterior display device 12, calculate the weight of stone in the concrete, sand, cement and water by the computing machine in the exterior display device 12, finish the scene of concrete composition is identified.

The detailed process that the related computing machine of present embodiment calculates is: the natural moisture content of stone and sand is respectively W _G, W _S, apparent density is respectively ρ ' _G, ρ ' _S, stone and the sand apparent density under drying regime is respectively ρ _G, ρ _S, then the volume of stone and sand is respectively:

$V_G=\frac{M_G}{{\mathrm{\ρ}}_G^{\′}}=\frac{1+W_G{\mathrm{\ρ}}_G}{{\mathrm{\ρ}}_G+W_G{\mathrm{\ρ}}_G}{M}_G=A_1{M}_G---\left(1\right)$

$V_S=\frac{M_S}{{\mathrm{\ρ}}_S^{\′}}=\frac{1+W_S{\mathrm{\ρ}}_S}{{\mathrm{\ρ}}_S+W_S{\mathrm{\ρ}}_S}{M}_S=B_1{M}_S---\left(2\right)$

M in the formula _G, M _SBe respectively stone and the sand weight under state of nature; With formula (1) and formula (2) substitution formula (3) M _C+ M _W+ M _G+ M _S=M and formula (4) V _C+ V _W+ V _G+ V _SAmong=the V, obtain formula (5) and formula (6):

$V_c=\frac{M-V-(1-A_1{M}_G)-(1-B_1)M_S}{{\mathrm{\ρ}}_C-1}---\left(5\right)$

V _W=V-A ₁M _G-B ₁M _S-V _C (6)

M wherein _C=ρ _CV _C, M _W=ρ _WV _W, M _CBe cement weight, ρ _CBe cement density, V _CBe cement volume, M _WBe the weight of water, ρ _WBe the density of water, V _WVolume for water; Consider the existence of the saturated water absorption after the content of stone and sand and water dash, derive M _G, M _SScreen over-size M ' after dashing with water _G, M ' _SRelation, if saturated water absorption and the silt content of stone is respectively W _G' and Q _G, saturated water absorption and the silt content of sand are respectively W _S' and Q _S, then to stone definition silt content be

So, obtain formula (7):

$M_G=\frac{1+W_G}{(1+W_G^{\′})(1-Q_G)}{M}_G^{\′}=A_2{M}_G^{\′}---\left(7\right)$

In like manner, obtain formula (8):

$M_S=\frac{1+W_S}{(1+W_S^{\′})(1-Q_S)}{M}_S^{\′}=B_2{M}_S^{\′}---\left(8\right)$

Formula (7) and formula (8) substitution formula (5) and formula (6) are obtained

$V_C=\frac{M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}}{{\mathrm{\ρ}}_C-1}$

V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

Then can draw the computing formula of each component in the concrete, namely

$M_C=\frac{{\mathrm{\ρ}}_C}{({\mathrm{\ρ}}_C-1)}[M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}]$

M _W=V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

M _G=A ₂M′ _G

M _S=B ₂M′ _S。

Claims (3)

1. the identification apparatus of a concrete composition is characterized in that agent structure comprises the rotary screen of charging aperture, capacity line, the first weight induction device, feeder hopper, 0.5mm screen cloth, rotary screen, liquid discharge outlet, discharge gate, the second weight induction device, first discharge port, second discharge port, exterior display device, spectrum detection instrument and the motor of 0.08mm screen cloth; The below of charging aperture is provided with the capacity line, and the below of capacity line fixedly is shaped on the first weight induction device, and the concrete weight that the first induction installation measurement of inductance is poured into from charging aperture is also sent concrete into feeder hopper, and the capacity of feeder hopper is 50L; The bitubular roller screen that the rotary screen of the fixedly connected 0.5mm of the being shaped on screen cloth in feeder hopper lower end and the rotary screen of 0.08mm screen cloth constitute, the rotary screen of the rotary screen of 0.5mm screen cloth and 0.08mm screen cloth sifts out stone and the sand in the concrete respectively; 0.08mm the fixedly connected motor that is shaped on of the right-hand member of the rotary screen of screen cloth; 0.5mm the left end port of the rotary screen of the rotary screen of screen cloth and 0.08mm screen cloth fixedly is shaped on second discharge port and first discharge port respectively, the stone that the rotary screen of second discharge port discharge 0.5mm screen cloth sifts out, the sand that the rotary screen of first discharge port discharge 0.08mm screen cloth sifts out; First discharge port is fixedlyed connected with the second weight induction device with second discharge port, the sand that second weight induction device measurement of inductance first discharge port and second discharge port are discharged and the weight of stone; The second weight induction device lower end fixedly is shaped on discharge gate, and discharge gate is discharged sand and stone; Be shaped on liquid discharge outlet 0.08mm open the bottom of the rotary screen of screen cloth, excess liquid is discharged by liquid discharge outlet; Spectrum detection instrument is fixedlyed connected additive composition and the ratio that contains in the detection concrete with the first weight induction device; The first weight induction device and the second weight induction device carry out computational analysis to the computing machine in the exterior display device according to the computation process of setting with the data transmission that records, and realize the scene of concrete composition is identified.

2. the identification apparatus of concrete composition according to claim 1 is characterized in that realizing that the concrete processing step to identify at the scene of concrete admixture and concrete composition is:

(1), extract the mixed concrete sample in working-yard, in spectrum detection instrument, adopt existing spectrographic method analysis to draw composition and the ratio of the additive that exists in the concrete earlier;

(2), the concrete sample of the working-yard that step (1) is obtained is poured in the feeder hopper of fixed capacity 50L, obtain concrete weight by the first weight induction device, pour wash-down water into from charging aperture simultaneously concrete is washed away, obtain the potpourri of concrete and water;

(3), the potpourri of concrete and water is filtered out stone and sand by the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth respectively, and measure the weight of saturated suction stone and saturated suction sand respectively by the second weight induction device;

(4), the mass transport with the concrete that obtains, saturated suction stone and saturated suction sand arrives exterior display device, calculate the weight of stone in the concrete, sand, cement and water by the computing machine in the exterior display device, finish the scene of concrete composition is identified.

3. the identification apparatus of concrete composition according to claim 1, it is characterized in that the detailed process that related computing machine calculates is: the natural moisture content of stone and sand is respectively W _G, W _S, apparent density is respectively ρ ' _G, ρ ' _S, stone and the sand apparent density under drying regime is respectively ρ _G, ρ _S, then the volume of stone and sand is respectively:

$V_G=\frac{M_G}{{\mathrm{\ρ}}_G^{\′}}=\frac{1+W_G{\mathrm{\ρ}}_G}{{\mathrm{\ρ}}_G+W_G{\mathrm{\ρ}}_G}{M}_G=A_1{M}_G---\left(1\right)$

$V_S=\frac{M_S}{{\mathrm{\ρ}}_S^{\′}}=\frac{1+W_S{\mathrm{\ρ}}_S}{{\mathrm{\ρ}}_S+W_S{\mathrm{\ρ}}_S}{M}_S=B_1{M}_S---\left(2\right)$

M in the formula _G, M _SBe respectively stone and the sand weight under state of nature; With formula (1) and formula (2) substitution formula (3) M _C+ M _W+ M _G+ M _S=M and formula (4) V _C+ V _W+ V _G+ V _SAmong=the V, obtain formula (5) and formula (6):

$V_c=\frac{M-V-(1-A_1{M}_G)-(1-B_1)M_S}{{\mathrm{\ρ}}_C-1}---\left(5\right)$

V _W=V-A ₁M _G-B ₁M _S-V _C (6)

M wherein _C=ρ _CV _C, M _W=ρ _WV _W, M _CBe cement weight, ρ _CBe cement density, V _CBe cement volume, M _WBe the weight of water, ρ _WBe the density of water, V _WVolume for water; Consider the existence of the saturated water absorption after the content of stone and sand and water dash, derive M _G, M _SScreen over-size M ' after dashing with water _G, M ' _SRelation, if saturated water absorption and the silt content of stone is respectively W _G' and Q _G, saturated water absorption and the silt content of sand are respectively W _S' and Q _S, then to stone definition silt content be So, obtain formula (7):

$M_G=\frac{1+W_G}{(1+W_G^{\′})(1-Q_G)}{M}_G^{\′}=A_2{M}_G^{\′}---\left(7\right)$

In like manner, obtain formula (8):

$M_S=\frac{1+W_S}{(1+W_S^{\′})(1-Q_S)}{M}_S^{\′}=B_2{M}_S^{\′}---\left(8\right)$

Formula (7) and formula (8) substitution formula (5) and formula (6) are obtained

$V_C=\frac{M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}}{{\mathrm{\ρ}}_C-1}$

V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

Then can draw the computing formula of each component in the concrete, namely

$M_C=\frac{{\mathrm{\ρ}}_C}{({\mathrm{\ρ}}_C-1)}[M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}]$

M _W=V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

M _G=A ₂M′ _G

M _S=B ₂M′ _S。

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