CN104310903A

CN104310903A - Preparation method of foam plastic light-weight filler

Info

Publication number: CN104310903A
Application number: CN201410523684.3A
Authority: CN
Inventors: 陆强
Original assignee: XI'AN HUALU ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
Current assignee: XI'AN HUALU ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
Priority date: 2014-10-08
Filing date: 2014-10-08
Publication date: 2015-01-28

Abstract

The invention relates to a preparation method of a foam plastic light-weight filler, belonging to the fields of environment-friendly material preparation methods and waste comprehensive utilization methods. The preparation method comprises the following steps: taking a certain volume of silt, pouring into a stirrer, weighing according to the design formula, adding the cement and foam plastic particles, and carrying out mechanical forced stirring at the speed of 100 r/min to obtain a uniform mixture which is the foam plastic light-weight filler. The curing technique is utilized to convert the waste dredging silt and waste foam plastic into the new geomaterial foam plastic light-weight filler, thereby solving the problem of shortage in earthwork resources, reducing the waste and solving the problem of environmental pollution. The preparation method has wide engineering application prospects, and is worthy of popularization.

Description

The preparation method that formed plastic light bankets

Technical field

The present invention relates to the preparation method that a kind of formed plastic light bankets, belong to environment-friendly materials preparation method and waste ' s reclamation method field.

Background technology

For ensureing electrical equipment and the safety of other valuable delicate articles in transportation, often adopt porous plastics this not only can not increase very large weight but also its stressed material can have been cushioned carry out liner, and when these commodity arrive in human consumer's hand, porous plastics has become to take up room large and has acted on very micro-waste product, so create a large amount of waste plastic foam.In addition, the use of a large amount of plastics disposable tableware, also waste plastic foam is made to greatly increase, but, the value that waste plastic foam is extremely low also makes China extremely low to the rate of recovery of waste plastic foam, this enters rubbish with regard to making a large amount of waste plastic foams, the waste plastic foam entered in domestic refuse is difficult to process, by the most original landfill method process, not only take a large amount of soil but also cause air, the secondary pollution of groundwater resource and rivers,lakes and seas, plastics volume is large, light specific gravity, be embedded in underground centuries can not degrade, and softening agent and bleeding of additive have a strong impact on the heat transfer of soil in plastics, mass transfer process, make soil compaction, and cause groundwater pollution, during with burning method process, the poor stability burned, produce the waste gas of complicated component and a large amount of pollutent extremely strong containing toxicity, cause the secondary pollution to air, and incineration disposal is costly various, the waste plastic foam in visible domestic refuse not only have impact on natural landscape, creates visual pollution, our environment increasingly fragile of more profound harm, brings disadvantageous effect to people's life and health.

In China along with lake treatment, harbour, navigation channel, increasing rapidly of Ocean and coastal engineering construction, create a large amount of dredged mud, according to estimates, every annual siltation volume 100,000,000 m3, at present in China mainly through two kinds of method process dredged mud, hydraulic reclamation method, throw mud method, hydraulic reclamation method is exactly needing the area of embankment to build cofferdam, then by dredged mud hydraulic reclamation in interior method, the greatest problem using hydraulic reclamation process is exactly hydraulic reclamation problems of land utilization, hydraulic fill foundation is also due to very weak, the basement process expense of both expensive is needed when the exploitation in later stage, and dredge fill often occurs that muddy water is to the diffusion of outside, cofferdam, cause the problem of secondary pollution, throwing mud method is generally arrange spoil area in specific territory, dredged mud transport is so far poured into ocean, this behavior serious harm marine organisms living environments, have impact on effective exploitation of oceanic resources, according to relevant expert's prediction, the handling problems of dredging silt will become the critical problem that restriction China administers great rivers and oceanographic engineering development.

In many large-scale earthworks, as all needed a large amount of embankments native in the reinforcing of the construction of motorway, bank of river, building embankment engineering, oceanographic engineering.At present, the method such as these soil generally carry out the excavation of owner-farmed land, sand is adopted in riverbed, cut into a mountain for quarrying, but the earthwork resource that these methods obtain is limited, and also these methods also can bring many negative impacts, as caused soil erosion and farmland minimizing etc., directly endanger environment.Due to China particularly coastland construction need earth volume large, along with the minimizing of natural resource and the enhancing of common people's environmental consciousness, the exploitation of the earthwork is more and more difficult, and again because the rise of price and the prolongation of shipment distance, long distance earthwork transportation is just very uneconomical.So engineering earth has become the important cost factor of some particularly development & construction of Larger Engineering Projects.How to solve above tripartite's contradiction, scientifically utilize these waste resources to be environmental objective urgently to be resolved hurrily, there is important economy and environment benefit.

Summary of the invention

The present invention aims to provide a kind of technique formed plastic light that is simple, preparation and to banket the preparation method that the high formed plastic light of intensity bankets.

The preparation method that formed plastic light of the present invention bankets, comprises the following steps:

First get mud by certain volume, pour in agitator, then weigh by component design and add cement and foam grain, mechanically action of forced stirring, rotating speed is 100r/min, and the compound stirred is formed plastic light and bankets.

Preferably, foam grain of the present invention is the waste plastic foam particle of particle diameter 1-3mm, and mud is dredged mud, and cement is ordinary Portland cement.

Preferred, component design of the present invention is that in 1m3 dredged mud, cement addition is 68-137kg, and waste plastic foam particle addition is 25.71-69.98kg.

Preferred further, component design of the present invention can add industrial waste if flyash, gypsum etc. are as Curing material according to embody rule situation.

In preparation method of the present invention, by curing technology, the dredged mud, the waste plastic foam process that become rubbish are become new earth working material-formed plastic light and banket.Described solidification technology is mixed with solidifying agent and other chemical additive by bazardous waste, makes it change into similar soil or the very large solid of consolidation strength, on the spot landfill or be used as material of construction.Solidification technology of the present invention is poured in agitator by dredged mud, then weigh by design proportioning and add cement class solidifying agent and waste plastic foam particle, and mechanically action of forced stirring mixing, forms the cured body with some strength.Due to the generation of hydrolysis product of cement between soil particle surface and soil particle, be filled with the macrovoid between soil particle gradually, and along with cement-hydrate continue increase, cohesion and crystallization, continuing to fill macroporous while, start to make a difference to the microporosity in grain group in soil, the permeability coefficient of cement-earth is reduced, thus reach the object leached with the hazard component that inert material fetters in bazardous waste, more importantly it finally creates the new geomaterial-waste plastic foam stabilized light soil with high added value, reach the object that changing waste into resources utilizes.

Adopt design proportioning of the present invention, waste plastic foam stabilized light soil has following engineering characteristic, and wet density is between 0.7-1.0g/cm3, and can according to the different requirements of engineering, controlled by adjustment material prescription, under the prerequisite meeting requirement of strength, reduce density and cost as far as possible; Unconfined compression strength is more common bankets much higher, and according to the different requirements of engineering, its unconfined compression strength freely can be controlled within the scope of 145-500kPa by the formula adjusting material; The intensity of sample derives from the hydration reaction of solidify material, so its longterm strength not only can not reduce, and can have increased slightly.It should be noted that the sample of all formulas used of the present invention, breaking strain is all less than 5%, is brittle rupture.Therefore to this earth working material, need control load, make load be no more than structural strength, thus make it have good engineering properties.

Construction costs can be made too high owing to adding merely cement, industrial waste can be added if flyash, gypsum etc. are as Curing material, both facilitate the solidification effect of cement, and reduced cost, again can utilization of waste material, produce new earth working material.

The earth working material adopting this technology to make has high-strength light, before solidification, there is mobility, the advantage such as can to support oneself after solidification, the expanding that can be widely used in roadbed bankets, banketing on soft base, the works such as abutment banket behind and are directly used as retaining wall, especially low-density feature can alleviate the pressure to substrate or underlying stratum, reduce even without the need to basement process, the construction period can be shortened significantly, save land used etc., particularly can reduce the expense of maintenance and management caused due to the settlement after construction of soft base significantly, reduce further the comprehensive cost of whole engineering.

Preparation method of the present invention, pass through curing technology, the dredged mud, the waste plastic foam process that become rubbish are become new earth working material-formed plastic light and banket, both a cubic meter scarcity of resources problem had been solved, reduce rubbish again, solving problem of environmental pollution, have wide future in engineering applications, is a kind of method be worthy to be popularized.

Embodiment

Embodiment one:

First get dredged mud by certain volume, pour in agitator, be 68-137kg by cement addition in 1m3 dredged mud again, waste plastic foam particle addition is that the component design of 25.71-69.98kg weighs and adds the waste plastic foam particle of ordinary Portland cement and particle diameter 1-3mm, mechanically action of forced stirring, rotating speed is 100r/min, the compound stirred is formed plastic light and bankets, and also can add industrial waste if flyash, gypsum etc. are as Curing material according to embody rule situation.

Embodiment two:

By preparation method of the present invention, be that in 1m3 mud, cement addition is 102.86kg, waste plastic foam particle addition is 31.69kg by proportioning, the formed plastic light prepared bankets after molding maintenance 28d, its wet density is 0.73g/cm3, ultimate compression strength is 370g/cm3, stress 430kPa, breaking strain is less than 3%, is brittle rupture.Therefore to this earth working material, need control load, make load be no more than structural strength, thus make it have good engineering properties.

Claims

1. the preparation method that bankets of formed plastic light, comprises the following steps:

2. the preparation method that bankets of formed plastic light as claimed in claim 1, it is characterized in that described foam grain is the waste plastic foam particle of particle diameter 1-3mm, mud is dredged mud, and cement is ordinary Portland cement.

3. the preparation method that bankets of formed plastic light as claimed in claim 1, it is characterized in that described component design is that in 1m3 dredged mud, cement addition is 68-137kg, waste plastic foam particle addition is 25.71-69.98kg.

4. the preparation method that bankets of formed plastic light as claimed in claim 1, is characterized in that described component design can add industrial waste if flyash, gypsum etc. are as Curing material according to embody rule situation.