A kind of concrete mix workability analyzer
Technical field
The present invention relates to a kind of concrete mix workability analyzer, the concrete mix workability analyzer that specifically a kind of degree of accuracy is higher.
Background technology
Workability refers to that concrete mix is easy to constructing operation and can obtains uniform quality, shaping closely knit performance.Workability is a comprehensive technological property, comprises the implication of three aspects such as mobility, cohesiveness and water-retaining property, interknits, but often there is contradiction between this three aspect.Mobility refers to that concrete mix is being easy to produce flowing, is being easy to carry and be easy to be full of the character of concrete blinding under gravity or mechanical vibration force effect.Cohesiveness is the ability that concrete mix keeps overall uniformity in work progress.Cohesiveness can ensure that well concrete mix is in conveying, pouring, the process such as shaping, and layering, segregation do not occur, and after namely ensureing sclerosis, concrete inner structure is even.Water-retaining property is the ability that concrete mix keeps moisture in work progress.Good water-retaining property can ensure that concrete mix is in conveying, shaping and condensation process, there is not large or serious bleeding, both a large amount of connection capillary-size pore because bleeding produces can have been avoided, can avoid due to bleeding again, make water build up at coarse aggregate and reinforcing bar bottom the interfacial adhesion defect caused.Water-retaining property has larger impact to concrete strength and permanance.
Summary of the invention
The object of this invention is to provide a kind of structure simple, the concrete mix workability analyzer that convenient operation, precision are high.
A kind of concrete mix workability analyzer, main body is made up of slump cone, Water collecting tube, scale column, fixing feeding hopper supporting ring, tamper and base, its innovative point is: described slump cone is round table-like, described fixing feeding hopper supporting ring is arranged on outside slump cone, described slump cone is placed on Water collecting tube middle position, described Water collecting tube is arranged on base, and described base is also provided with scale column.
Further, described slump cone is round table-like, and top is divided into inverted trapezoidal, and bottom is divided into trapezoid, its inwall should smooth, without convex-concave position; Bottom surface and end face should be parallel to each other and with the axes normal of cone.Install fixing feeding hopper supporting ring in the outside upper lower portion junction of slump cone, 2/3 At The Height pacifies two handles; The inside dimension of cylinder is: base diameter is 18.0 ~ 21.0cm; Top diameter is 8.5 ~ 11.0cm; Be highly 28.0 ~ 31.0cm; Wall thickness is even, and is 0.08 ~ 0.15cm.
Further, described Water collecting tube is back taper barrel structure, and base diameter is 18.0 ~ 21.0cm, and top diameter is 33.0 ~ 42.0cm, and dark 8.0 ~ 12.0cm scribbles the annular section of different colours inside barrel.
Further, described scale column is right cylinder, and diameter is 1.5 ~ 2.0cm, high 35 ~ 40cm, and leg surface is carved with yardstick.
Further, described fixing feeding hopper supporting ring, main structure body is for being with staight shank circular, and annulus is arranged on the outside upper lower portion junction of slump cone, and staight shank is arranged on scale column by setscrew nut, turns on setscrew nut, and supporting ring can height up and down.
Further, described tamper is right cylinder, and diameter is 1.4 ~ 2.2cm, and length is 64 ~ 67cm, and one end is rounding, and in hemispherical, the other end is provided with shakes hands.
Further, described base is formed by being with Water collecting tube desktop, wall, column with holes and rectangular interspersed screw; Described desktop two ends are arranged on two walls, and the two ends of described desktop are respectively provided with two columns with holes, and described two long gib screws, through the hole of two ends column with holes, are installed by wing nut.
Further, described desktop is rectangle, long 60 ~ 90cm, wide 50 ~ 60cm, thick 1.0 ~ 1.5cm.
Further, described wall is rectangle, wide 50 ~ 60cm, high 30 ~ 40cm, thick 1.0 ~ 1.5cm.
Further, described column with holes is rectangle, long 10 ~ 15cm, wide 3 ~ 5cm, thick 1.0 ~ 1.5cm; Hole is positioned at column upper end, and diameter is 1.0 ~ 2.5cm.
Further: described rectangular interspersed screw is right cylinder, and diameter is 1.0 ~ 2.0cm, and length is 110 ~ 120cm, and one end is provided with wing nut.
Beneficial effect of the present invention is:
1, concrete mix workability analyzer structure of the present invention is simple, and easy to operate, precision is high, and error is little.
2, slump cone top and the bottom of the present invention are connected by welding technology, and through quenching technical process, sturdy and durable, there is certain toughness, not fragile, and through glossing, meet the aesthetic standard of people.
3, Water collecting tube of the present invention, Water collecting tube main portions barrel adopts the steel plate that 2mm is thick, scribbles the annular section of different colours inside barrel, can quantitatively judge the quality of water-retaining property according to the region of liquid level.
4, scale column of the present invention, yardstick shown when can show mensuration accurately, very clear, convenient operation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Fig. 1 is general assembly structural representation of the present invention.
Fig. 2 is general assembly structural profile schematic diagram of the present invention.
Fig. 3 is the rectangular interspersed bolt structure schematic diagram of the present invention.
Fig. 4 is tamper structural representation of the present invention.
Fig. 5 is the structural representation of base of the present invention.
Embodiment
General assembly structural representation as shown in Figure 1, is made up of base 1, slump cone 2, column with holes 3, scale column 4, setscrew nut 5, fixing feeding hopper supporting ring 6.
Rectangular interspersed bolt structure schematic diagram as shown in Figure 3, is made up of rectangular interspersed screw 7 and wing nut 8.
1) first soak slump cone, feeding hopper, Water collecting tube barrel and bottom surface and other apparatus with wet cloth, require wetting and without open fire.Base is placed on solid surface level, with long spiro nail, slump cone and base is fixed together, feeding hopper laid by slump cone.
2) divided by mixed concrete mixture sample scuppit 3 layers to load equably in cylinder on request, after making tamping every layer of specimen height be cylinder high about 1/3.Every layer plugs and pounds 25 times with tamper.Should be carried out to center by periphery along the hand of spiral when plugging and pounding, plug and pound at every turn and should be uniformly distributed on cross section.When plugging and pounding the concrete sample on a limit, tamper can tilt a little; When plugging and pounding bottom, tamper should run through entire depth; When plugging and pounding the second layer and top layer, tamper should insert the surface of this layer to lower one deck.During pouring top layer, concrete mix should be filled with to feeding hopper 2/3 place, after top layer plugs and pounds, scrape off unnecessary concrete mix and use spatula floating.
3), after removing the concrete on the base of cylinder limit, vertically slump cone is mentioned reposefully.The raising process of slump cone should complete in 5 ~ 10s.From be charged to the whole process mentioning slump cone and should complete in 150s.
4) after mentioning slump cone, slump scale immediately on mobile column, concrete mix examination body peak after making scale lower edge and collapsing is equal, and from vertical rod, the lower limb of abutment ring reads scale (in units of mm), and this numerical value is the slump value of this concrete mix.
5) observe the height of liquid level in Water collecting tube, according to the color region at liquid level place, judge concrete water-retaining property.As the part concrete mix of liquid level in higher color region or cone is starched and aggregate exposure because flowing, then concrete water-retaining property is poor; If liquid level is in lower region, then show that water-retaining property is good.
6), after slump cone lift-off, as examination body collapses or cuts up phenomenon, then should resample measures.As second time still there is this phenomenon, then represent that this mixture workability is bad, should give record for future reference.
7) measure and after recording the slump, water-retaining property, impact gently with the mixture pyramid side that tamper is collapsing, if cone is sunk gradually, representing that the glutinous poly-property of mixture is good; If cone is decayed, part is burst apart or occur segregation, namely glutinous poly-property is poor.
8) when the slump recording mixture does not reach requirement, water cement ratio can be kept constant, increase by cement and the water of 5% or 10%; When the slump is excessive, sand coarse aggregate ratio can be kept constant, take the circumstances into consideration the consumption increasing sand and stone; As glutinous poly-property or poor water retention property, then need suitably to adjust sand coarse aggregate ratio.After each adjustment, mix is even as early as possible, re-starts the slump and measures.
The above is the preferred embodiment of the present invention, can not limit the interest field of the present invention with this.It should be pointed out that for those skilled in the art, technical scheme of the present invention is modified or equivalent replacement, do not depart from protection scope of the present invention.