CN107721347A - It is a kind of using lime as bridge expanssion joint area concrete special of bed material and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of using lime as bridge expanssion joint area concrete special of bed material and preparation method thereof.The bridge expanssion joint area concrete special is made up of following component in parts by weight：300 400 parts of lime, 550 700 parts of natural river sand, 100 150 parts of water, 16 parts of water reducer, 16 parts of nano silicon.The present invention solves the problems, such as that bridge expanssion joint area concrete special preparation method is complicated, preparing raw material is excessive, cost is higher in the prior art, and the raw materials used wide material sources of the present invention, price are low, and preparation method is simple, are adapted to large-scale promotion.

Description

It is a kind of using lime as bridge expanssion joint area concrete special of bed material and preparation method thereof

Technical field

The invention belongs to pavement construction material field, more particularly, to a kind of bridge expanssion joint using lime as bed material Area's concrete special and preparation method thereof.

Background technology

Concrete, refer to the general designation of the cementing integral engineered composite material of aggregate by binder materials.That generally says is mixed One word of solidifying soil refers to make binder materials, sand, masonry aggregate with cement；Match somebody with somebody by a certain percentage with water (additive and admixture can be contained) Close, it is agitated obtained by cement concrete, also referred to as normal concrete, it is widely used in civil engineering.

Concrete has a variety of sorting techniques, is divided into inorganic coagulation material concrete by binder materials and organic cementing material is mixed Solidifying soil；It is divided into loaded concrete, normal concrete, lightweight concrete by apparent density；It is divided into structural concrete, guarantor by using function It is warm concrete, architectural concrete, water-proof concrete, refractory concrete, concrete for hydraulic structure, maritime concrete, road concrete, anti- Radiate concrete etc.；By construction technology be divided into centrifugal concrete, vacuum concrete, grouted-aggregate concrete, gunite concrete, roll it is mixed Solidifying soil, extruded concrete, pump concrete etc.；It is divided into plain (i.e. without muscle) concrete, armored concrete, steel wire by reinforcement manner Cement, fiber concrete, prestressed concrete etc.；It is divided into dry concrete, half dry concrete, plasticity by mixture to mix Solidifying soil, liquid concrete, high-flowing concrete, chutable concrete etc.；It is divided into flyash concrete by admixture, silicon ash is mixed Solidifying soil, slag concrete, fiber concrete etc..In addition, concrete can be also divided into by compression strength：Low-strength concrete (pressure resistance Degree is less than 30MPa), (compression strength is more than or equal to for middle strength concrete (compression strength 30-60Mpa) and strong concrete 60MPa)；It can be divided into again by every cubic metre of cement consumption：Lean concrete (cement consumption is no more than 170kg) and fat concrete (water Mud dosage is not less than 230kg) etc..

To improve some properties of concrete, additive can be added.There is obvious Technological Economy to imitate due to mixing additive Fruit, it has become the indispensable component of concrete.Concrete after workability or hardening for improvement concrete mix Performance, cement is saved, levigate mineral material-admixture can be also mixed when concrete stirs.It is divided into active and inactive Two classes.The property and quantity of admixture, influence intensity, deformation, the heat of hydration, impermeability and color of concrete etc..

The content of the invention

It is an object of the invention to solve, bridge expanssion joint area concrete special preparation method in the prior art is complicated, prepares The problem of raw material excessive cost is higher.

To achieve these goals, the first aspect of the present invention provides a kind of special using lime as the bridge expanssion joint area of bed material With concrete, the bridge expanssion joint area concrete special is made up of following component in parts by weight：Lime 300-400 parts, day Right river sand 550-700 parts, water 100-150 parts, water reducer 1-6 parts, nano silicon 1-6 parts.

As the preferred embodiment of the present invention, wherein, particle diameter≤2mm of the natural river sand.

As the preferred embodiment of the present invention, wherein, particle diameter≤25nm of the nano silicon.

As the preferred embodiment of the present invention, wherein, the water reducer is selected from lignin sulfonate water reducer, naphthalene system The high water reducer of high efficiency water reducing agent class, melamine superplasticizer, Amino-sulfonic Acid-based Water-reducer, fatty acid series and poly- At least one of carboxylate series high-efficiency water-reducing agent.

As the preferred embodiment of the present invention, wherein, water-reducing rate >=20% of the water reducer.

The second aspect of the present invention provides the preparation method by described bridge expanssion joint area concrete special, the preparation side Method after lime, natural river sand, the uniform mixing of water including that will add nano silicon, water reducer uniformly mixes.

Water reducer is a kind of under conditions of maintaining concrete slump to be basically unchanged, and can reduce the coagulation of mixing water amount Native additive.Belong to anion surfactant mostly, there is lignosulfonates, naphthalene sulphonate formaldehyde polymer etc..Add mixed There is peptizaiton to lime particle after coagulating native mixture, its workability can be improved, reduce unit consumption of water, improve concrete mixing The mobility of thing.

Beneficial effects of the present invention：

Solve in the prior art bridge expanssion joint area concrete special preparation method is complicated, preparing raw material is excessive, cost compared with The problem of high, the raw materials used wide material sources of the present invention, price are low, and preparation method is simple, are adapted to large-scale promotion.

Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.

Embodiment

The preferred embodiment of the present invention is described in more detail below.Although the following describe being preferable to carry out for the present invention Mode, however, it is to be appreciated that may be realized in various forms the present invention without should be limited by embodiments set forth herein.Phase Instead, there is provided these embodiments be in order that the present invention is more thorough and complete, and can be by the scope of the present invention intactly It is communicated to those skilled in the art.

Embodiment 1：

A kind of bridge expanssion joint area concrete special using lime as bed material, the bridge expanssion joint area concrete special by with The following component composition of weight meter：Lime 300kg, natural river sand 550kg, water 100kg, water reducer 6kg, nano silicon 1kg。

Particle diameter≤2mm of natural river sand；Particle diameter≤25nm of nano silicon；Water reducer is naphthalene series high-efficiency water-reducing agent Class；Water-reducing rate >=20% of water reducer.

Embodiment 2：

A kind of bridge expanssion joint area concrete special using lime as bed material, the bridge expanssion joint area concrete special by with The following component composition of weight meter：Lime 400kg, natural river sand 400kg, water 150kg, water reducer 1kg, nano silicon 3kg。

Particle diameter≤2mm of natural river sand；Particle diameter≤25nm of nano silicon；Water reducer is that sulfamate system is efficient Water reducer；Water-reducing rate >=20% of water reducer.

It is described above various embodiments of the present invention, described above is exemplary, and non-exclusive, and It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill Many modifications and changes will be apparent from for the those of ordinary skill in art field.

Claims (6)

1. a kind of bridge expanssion joint area concrete special using lime as bed material, it is characterised in that the bridge expanssion joint area is special Concrete is made up of following component in parts by weight：

Lime 300-400 parts, natural river sand 550-700 parts, water 100-150 parts, water reducer 1-6 parts, nano silicon 1-6 Part.

2. the bridge expanssion joint area concrete special according to claim 1 using lime as bed material, wherein, the natural river Husky particle diameter≤2mm.

3. the bridge expanssion joint area concrete special according to claim 1 using lime as bed material, wherein, the nanometer two Particle diameter≤25nm of silica.

4. the bridge expanssion joint area concrete special according to claim 1 using lime as bed material, wherein, the water reducer It is high selected from lignin sulfonate water reducer, naphthalene series high-efficiency water-reducing agent class, melamine superplasticizer, sulfamate system Imitate at least one of water reducer, the high water reducer of fatty acid series and polycarboxylate high-efficiency water-reducing agent.

5. the bridge expanssion joint area concrete special according to claim 1 using lime as bed material, wherein, the water reducer Water-reducing rate >=20%.

6. the preparation side using lime as the bridge expanssion joint area concrete special of bed material in claim 1-5 described in any one Method, it is characterised in that the preparation method includes that nano silicon, diminishing will be added after lime, natural river sand, water uniformly mixing Agent uniformly mixes.