CN104803654A

CN104803654A - Method for preparing straw bricks

Info

Publication number: CN104803654A
Application number: CN201510193135.9A
Authority: CN
Inventors: 商巧玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-22
Filing date: 2015-04-22
Publication date: 2015-07-29

Abstract

A method for preparing straw bricks includes the following step: compounding slurry consisting of wheat straws, magnesite and a coagulant to form the straw bricks, and is characterized by including the specific steps: exposing the wheat straws to the weather under a natural condition while controlling the humidity to be 17% or below, processing the straws into straw bricks through a packaging machine or a straw brick machine, wherein the magnesite material includes slurry prepared from light calcined magnesia, bittern slices and a water solution, and air hardening binding material capable of solidifying in air; compounding the straw bricks with magnesite, that is, combining slurry formed by blending magnesite material and the coagulant with the straw bricks, wherein the compounding manner of the slurry comprising straw bricks, magnesite and the coagulant is that during the pressing of the straw bricks, the slurry consisting of magnesite and the coagulant is added.

Description

A kind of method preparing careless brick

Technical field

the application relates to a kind of careless brick preparation method, specifically wheat straw brick preparation method.

Background technology

wheat straw brick is the careless brick that wheat straw makes; have insulation, moisturizing, cheap, save coal-fired, shock resistance is strong, permeability good and minimizing Carbon emission, reduce topsoil, the advantage such as to protect farmland, and is typical resource-conserving construction of environmental protection project.Since the eighties in 20th century, along with people are to the continuous enhancing of the pursuit of green fashion and awareness of saving energy, straw bale building rises in the whole world.

grass brick house is the house that basic building materials build up grass with the careless brick be mechanically pressed into.Be characterized in good heat insulating; consume energy in production low; environmentally friendly; protection soil, is suitable for, comfortable; since the feature .20 such as attractive in appearance eighties in century; along with people are grown to even greater heights to the pursuit of green ecological and environmental protection and energy saving demand, facilitating straw bale building heat and rise once again in the whole world. technique functions comes from U.S. nineties in 19th century, existing more than 100 year history.In the past few years, northern China 5 province 9 builds together on ground nearly 800 covers of energy-conservation careless brick demonstration house owed by a citizen comprising 3 primary schools, dark liking by the vast farmers masses.Through tracing detection grass brick house, finding energy-conservationly to reach more than 50%. people are referred to as not only original but also efficient, and both tradition presented the ecotecture of the pure green in generation again.

Summary of the invention

although careless brick has many advantages as the careless brick house of construction, in actual applications, really there is many drawbacks and flaw.Such as often can see at bearing wall, the inferior position of windowsill the crack that non-uniform settling causes, from but rainwater and wet gas invade body of wall, and the wheat straw brick being in lower floor be inevitably subjected to ground due to capillarity cause get damp, rainwater infiltrate, wheat straw brick anti-pressure ability is caused to decline, microbial growth, the pocketed heat of wheat straw brick, efflorescence, structure of fibrous tissue disintegrates, more promote spreading of crack, cause more moisture to invade, form vicious cycle, finally cause bearing wall to lose efficacy.Meanwhile, the frequency that the plague of rats occurs has been increased the weight of., solve the problem for this reason, can by careless brick and magnesite combine with technique, the final plurality of advantages forming existing wheat straw brick, can prevent and treat again the composite modified wheat straw brick that above-mentioned drawback occurs.By outside wheat straw brick with magnesite mud compound, being formed at the outside surface of wheat straw brick with wheat straw is stiffening web, and using magnesite as sizing material, solidify in atmosphere, forming one deck can waterproof, has again the composite modified wheat straw grass brick of higher-strength, take into account both advantages, there is provided working efficiency, crackle preventing, insulation, the New Building Materials that weathering resistance is strong.

concrete technical scheme is: a kind of method preparing wheat straw brick, by the mud compound that wheat straw, magnesite form with setting accelerator, forms wheat straw brick; It is characterized in that: concrete grammar comprises: by wheat straw under field conditions (factors), expose to the weather, humid control is 17% and following, be machined to wheat straw brick with packing machine or wheat straw brick, magnesite material comprises the mud that light calcined magnesia, halogen sheet are made with the aqueous solution and the air hardening cementitious materials that can solidify in atmosphere; By wheat straw brick with magnesite compound, the mud being about to be reconciled into by magnesite material and setting accelerator combines with wheat straw brick, and the form of the mud compound formed with magnesite and setting accelerator by wheat straw brick is: the mud adding magnesite and setting accelerator composition in wheat straw brick pressing process; The wheat straw brick suppressed is put into the mud container stirred into that half magnesite and setting accelerator are housed, soak after 2-15 minute, accommodate with fixture and directly build by laying bricks or stones on a predetermined position, and by the exposed face cleaver process of careless brick both sides, make the surfacing exposed, wheat straw brick is pressed into required geometrical shape; Afterwards, by the ferrous sulfate of concentration between 0.01 to 0.8%, the form compound that the mud formed with magnesite and setting accelerator is dipped with surface makes wheat straw brick; For the mud and wheat straw brick that enable magnesite and setting accelerator composition combine finer and close, bleed in encloses container, part in wheat straw brick is made to form negative pressure, then reduce pressure, to accelerate in the quick immersion wheat straw brick of the mud of magnesite and setting accelerator composition, after wheat straw brick dries, just can as the material of construction of careless brick house.

also comprise: after surface is dipped; dip layer protective layer again: ferrous sulfate and caustic lime block use water dissolution respectively; be made into copperas solution and unslaked lime emulsion; two kinds of solution are contained with the container that non-metallic material make; coordinate, dilute; with this diluent, one deck is dipped on the wheat straw brick surface suppressed, form the protective layer that one deck contains diluting soln.

Embodiment

should select drying, complete, nothing is gone mouldy and there is not wheat straw or the wheat straw of variable color, and moisture is less than 17%.Grass brick machine and forage, and the production environment of careless brick is preferably in the place having ceiling.When making wheat straw brick, wheat straw material can not whole bundle be filled in.By after loose for wheat straw material, bit by bit should add.The grass loose and at random that wheat straw brick surface exists, can directly affect the quality of plastering, available scissors is directly pruned, and makes it rectify strictly.Finished product wheat straw brick should the well-regulated shape of tool.Its density and weight should between 25-35 kilograms.Wheat straw brick preferably leaves indoor in, and has the support of ventilation, not direct kiss the earth.Keeping the drying of careless brick, is vital.

by the mud compound that wheat straw, magnesite form with setting accelerator, form wheat straw brick; It is characterized in that: concrete grammar comprises: by wheat straw under field conditions (factors), expose to the weather, humid control is 17% and following, be machined to wheat straw brick with packing machine or wheat straw brick, magnesite material comprises the mud that light calcined magnesia, halogen sheet are made with the aqueous solution and the air hardening cementitious materials that can solidify in atmosphere.

by wheat straw brick with magnesite compound, the mud being about to be reconciled into by magnesite material and setting accelerator combines with wheat straw brick, and the form of the mud compound formed with magnesite and setting accelerator by wheat straw brick is: the mud adding magnesite and setting accelerator composition in wheat straw brick pressing process; The wheat straw brick suppressed is put into the mud container stirred into that half magnesite and setting accelerator are housed, soak after 2-15 minute, accommodate with fixture and directly build by laying bricks or stones on a predetermined position, and by the exposed face cleaver process of careless brick both sides, make the surfacing exposed, wheat straw brick is pressed into required geometrical shape.

afterwards, by the ferrous sulfate of concentration between 0.01 to 0.8%, the form compound that the mud formed with magnesite and setting accelerator is dipped with surface makes wheat straw brick; For the mud and wheat straw brick that enable magnesite and setting accelerator composition combine finer and close, bleed in encloses container, part in wheat straw brick is made to form negative pressure, then reduce pressure, to accelerate in the quick immersion wheat straw brick of the mud of magnesite and setting accelerator composition, after wheat straw brick dries, just can as the material of construction of careless brick house.

wherein, the wheat straw brick suppressed is being put into the mud container stirred into adding and half magnesite and solidifying agent are housed, soak after 2-15 minute, accommodate with fixture and directly build by laying bricks or stones on a predetermined position, and by instrument process such as careless brick both sides exposed face cleavers, make the surfacing exposed, be beneficial to subsequent step processing.According to the difference of envrionment temperature, within maintenance 3-10 days, the process such as cover can be carried out.

Claims

1. prepare a method for careless brick, by the mud compound that wheat straw, magnesite form with setting accelerator, form wheat straw brick; It is characterized in that: concrete grammar comprises: by wheat straw under field conditions (factors), expose to the weather, humid control is 17% and following, be machined to wheat straw brick with packing machine or wheat straw brick, magnesite material comprises the mud that light calcined magnesia, halogen sheet are made with the aqueous solution and the air hardening cementitious materials that can solidify in atmosphere; By wheat straw brick with magnesite compound, the mud being about to be reconciled into by magnesite material and setting accelerator combines with wheat straw brick, and the form of the mud compound formed with magnesite and setting accelerator by wheat straw brick is: the mud adding magnesite and setting accelerator composition in wheat straw brick pressing process; The wheat straw brick suppressed is put into the mud container stirred into that half magnesite and setting accelerator are housed, soak after 2-15 minute, accommodate with fixture and directly build by laying bricks or stones on a predetermined position, and by the exposed face cleaver process of careless brick both sides, make the surfacing exposed, wheat straw brick is pressed into required geometrical shape; Afterwards, by the ferrous sulfate of concentration between 0.01 to 0.8%, the form compound that the mud formed with magnesite and setting accelerator is dipped with surface makes wheat straw brick; For the mud and wheat straw brick that enable magnesite and setting accelerator composition combine finer and close, bleed in encloses container, part in wheat straw brick is made to form negative pressure, then reduce pressure, to accelerate in the quick immersion wheat straw brick of the mud of magnesite and setting accelerator composition, after wheat straw brick dries, just can as the material of construction of careless brick house.

2. a kind of method preparing careless brick according to claim 1; also comprise: after surface is dipped; dip layer protective layer again: ferrous sulfate and caustic lime block use water dissolution respectively; be made into copperas solution and unslaked lime emulsion; two kinds of solution are contained with the container that non-metallic material make; coordinate, dilute, with this diluent, one deck is dipped on the wheat straw brick surface suppressed, form the protective layer that one deck contains diluting soln.