Summary of the invention
The present invention is directed in all kinds of road construction constructions of China and set up building stones factory owing to having relatively high expectations for the material of used rubble, thereby tooling cost and transportation cost have been increased, and then so that the cost of building the road is high, and a large amount of decayed racks that dig out when building roadbed, native horsestone, mountain Pi Shi etc. are because intensity is low, the reasons such as soil stone mixes, can't use on sub-surface, cause the in a large number side of abandoning, land occupation, also increased the deficiency of the cost of building the road, a kind of ground solidifying agent and manufacture method thereof and road structure and manufacture method thereof are provided.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of ground solidifying agent comprises following composition by its weight percent meter:
The first metal-salt 10%~30%
The second metal-salt 5%~10%
Water 20%~40%
Acid 10%~20%
Hardening accelerator 1%~5%
Water reducer 2%~10%
Dispersion agent 0.2%~1%
Fluorocarbon surfactant and polyocarboxy acid type tensio-active agent 1%~11%.
The invention has the beneficial effects as follows: ground solidifying agent of the present invention can be applied to road constructions at different levels, the airport, the harbour, harbour, the pavement of road basic unit in the industry such as square and covil construction field, substitute all kinds of two-ash broken stones, the steady rubble of water, the materials such as graded broken stone, can be with all kinds of soil under the usage quantity of trace, decayed rack, mill tailings, the curing such as building waste, the highway subgrade of building, the airport ground, the basis, harbour, it is short that water conservancy projectss etc. have preserving period, water-fast invading, freeze-thawing resistant, stop hair line to produce, improve ultimate compression strength and bend resistance intensity, the advantage of decrease construction cost, meet the road foundation requirement of strength, reduce the side of abandoning that produces in the road engineering, reduce simultaneously the environmental disruption of cutting into a mountain for quarrying, reach and reduce the road construction cost, waste ' s reclamation, the purpose of energy-saving and emission-reduction meets the theory of energy-saving and emission-reduction and recycling economy, has preferably Social benefit and economic benefit.
On the basis of technique scheme, the present invention can also do following improvement:
Further, described acid is the vitriol oil or concentrated hydrochloric acid or formic acid; Described the first metal-salt is the metal-salt that contains monovalent metallic ion; Described the second metal-salt is the metal-salt that contains divalence or trivalent metal ion.
Further, described the first metal-salt is vitriolate of tartar or sodium sulfate or Repone K or sodium-chlor or sodium metaaluminate, and described the second metal-salt is ferrous sulfate or iron trichloride or zinc sulfate or zinc chloride
Further, described hardening accelerator is trolamine or three b propanol amine; Described water reducer is naphthalene series high-efficiency water-reducing agent or aliphatic high-efficiency water reducing agent or amino hypervelocity high-performance water reducing agent or diminishing excitant or general sugared sodium saccharate or sodium lignosulfonate or calcium lignin sulphonate; Described dispersion agent is sodium lauryl sulphate or polyvinyl alcohol or Sodium hexametaphosphate 99.
Further, described fluorocarbon surfactant is serial fluorocarbon surfactant or the FSO series fluorocarbon surfactant of E.I.Du Pont Company or the FC series fluorocarbon surfactant of 3M company of the FSN of E.I.Du Pont Company, and described polyocarboxy acid type tensio-active agent is the TH-928 polycarboxylate high performance water-reducing agent.
The present invention also provides a kind of technical scheme that solves the problems of the technologies described above as follows: a kind of manufacture method of ground solidifying agent, and this manufacture method may further comprise the steps:
Step 10: in reaction unit, add by weight percentage 20%~50% water;
Step 11: will be that the first metal-salt of 10%~30% and the second metal-salt of 5%~10% add reaction unit successively by weight percentage, and carry out the first time and stir;
Step 12: will be that 10%~20% slow acid adds reaction unit by weight percentage, and carry out stirring second time; And
Step 13: will be that 1%~5% hardening accelerator, 2%~10% water reducer, 0.2%~1% dispersion agent and 1%~11% fluorocarbon surfactant and polyocarboxy acid type tensio-active agent add reaction unit successively by weight percentage, and stir for the third time, can make the ground solidifying agent.
The time of further, stirring the described first time is 20 minutes~40 minutes; The time that stir the described second time is 20 minutes~40 minutes; The described time of stirring for the third time is 1 hour~3 hours.
The present invention also provides a kind of technical scheme that solves the problems of the technologies described above as follows: a kind of road structure comprises following composition by its weight percent:
The first auxiliary material 80%~95%
The second auxiliary material 3%~8%
0.01%~0.05% of ground solidifying agent the first auxiliary material and the second auxiliary material gross weight
Water 2%~17%.
Further, described the first auxiliary material comprises one or several in excavation, mine tailing residue, drift-sand and the native horsestone of soil, discarded weathered rock and soil, urban architecture, and described the second auxiliary material comprises one or several in lime, cement and the power plant desulfurization gypsum.
The present invention also provides a kind of technical scheme that solves the problems of the technologies described above as follows: a kind of manufacture method of road structure may further comprise the steps:
Step 20: the first auxiliary material is carried out fragmentation, and the particle diameter of the first auxiliary material after the fragmentation is less than 3 centimetres;
Step 21: will be the first auxiliary material of 80%~95%, the second auxiliary material of 3%~8%, 2%~17% water by weight percentage and account for the first auxiliary material and the ground solidifying agent of the second auxiliary material gross weight 0.01%~0.05% carries out uniform stirring;
Step 22: with the compound that stirs through paving, can obtaining road structure after leveling, compacting and the health.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used for explaining the present invention, is not be used to limiting scope of the present invention.
Ground solidifying agent of the present invention comprises following composition by weight percentage: the first metal-salt of 10%~30%, the second metal-salt of 5%~10%, 20%~40% water, 10%~20% acid, 1%~5% hardening accelerator, 2%~10% water reducer, 0.2%~1% dispersion agent, 1%~11% fluorocarbon surfactant and polyocarboxy acid type tensio-active agent.
Described acid is the vitriol oil or concentrated hydrochloric acid or formic acid, and described the first metal-salt is the metal-salt that contains monovalent metallic ion, and described the second metal-salt is the metal-salt that contains divalence or trivalent metal ion.
Described the first metal-salt is vitriolate of tartar or sodium sulfate or Repone K or sodium-chlor, and described the second metal-salt is ferrous sulfate or iron trichloride or zinc sulfate or zinc chloride
Described hardening accelerator is trolamine or three b propanol amine, can accelerate the curing after the subgrade and pavement material compaction; Described water reducer is naphthalene series high-efficiency water-reducing agent or aliphatic high-efficiency water reducing agent or amino hypervelocity high-performance water reducing agent or diminishing excitant or general sugared sodium saccharate or sodium lignosulfonate or calcium lignin sulphonate; Described dispersion agent is sodium lauryl sulphate or polyvinyl alcohol or Sodium hexametaphosphate 99; Described fluorocarbon surfactant and polyocarboxy acid type tensio-active agent, can be in the surface tension of decrease ground particle planar water under the acidic conditions, make the ground solidifying agent infiltrate rapidly the ground particle, unnecessary water molecules is discharged or evaporation, thereby reduced the gap of ground particle after the compacting of subgrade and pavement mixing material, improve degree of compactness, thereby improved intensity.Described fluorocarbon surfactant is serial fluorocarbon surfactant or the FSO series fluorocarbon surfactant of E.I.Du Pont Company or the FC series fluorocarbon surfactant of 3M company of the FSN of E.I.Du Pont Company, and described polyocarboxy acid type tensio-active agent is the TH-928 polycarboxylate high performance water-reducing agent.Described fluorocarbon surfactant Main Function is the surface tension that reduces water, and solidifying agent can be entered in the ground particle when disperseing soon, reaches the effect of quick homogenizing.
Fig. 1 is ground solidifying agent manufacture method schematic flow sheet of the present invention.As shown in Figure 1, this manufacture method may further comprise the steps:
Step 10: reaction unit is provided, and in reaction unit, adds by weight percentage 20%~50% water.
Described reaction unit is reactor.
Step 11: will be that the first metal-salt of 10%~30% and the second metal-salt of 5%~10% add reaction unit successively by weight percentage, and carry out the first time and stir.
Open described reactor, under the high degree of agitation condition, described metal-salt is added in the reactor successively, the time that stir the described first time is 20 minutes~40 minutes.
Step 12: will be that 10%~20% slow acid adds reaction unit by weight percentage, and carry out stirring second time.
Described acid is one or several in the vitriol oil, concentrated hydrochloric acid and the formic acid.The time that stir the described second time is 20 minutes~40 minutes.
Step 13: will be that 1%~5% hardening accelerator, 2%~10% water reducer, 0.2%~1% dispersion agent and 1%~11% fluorocarbon surfactant and polyocarboxy acid type tensio-active agent add reaction unit successively by weight percentage, and stir for the third time, can make the ground solidifying agent.
The described time of stirring for the third time is 1 hour~3 hours.
" by weight percentage " in described step 10~step 13 all refers to " by the per-cent of the ground weight that makes at last ".
The below minute three embodiment do further detailed description to the manufacture method of ground solidifying agent of the present invention.
Embodiment one:
At first, in reactor, add 350 kilograms water after, open reactor; Secondly, 80 kilograms ferric sulfate and 140 kilo sulfuric acid sodium are added in the reactor successively, and stirred 30 minutes; Again, 180 kilograms the vitriol oils are added in the reactor lentamente, and stirred 30 minutes; Then, 10 kilograms the FSN-100 of E.I.Du Pont Company fluorocarbon surfactants, 30 kilograms trolamine, 80 kilograms calcium lignin sulfonate water depressor, 10 kilograms sodium lauryl sulphate and 90 kilograms TH-928 polycarboxylate high performance water-reducing agent are added in the reactor successively, and stirred 2 hours; At last, go out still, can make the ground solidifying agent.
Embodiment two:
At first, in reactor, add 350 kilograms water after, open reactor; Secondly, 80 kilograms iron(ic) chloride and 210 kilograms of sodium-chlor are added in the reactor successively, and stirred 30 minutes; Again, 150 kilograms concentrated hydrochloric acids are added in the reactor lentamente, and stirred 30 minutes; Then, 5 kilograms the FSN-100 of E.I.Du Pont Company fluorocarbon surfactants, 50 kilograms three b propanol amine, the sodium lignin sulfonate water reducer of double centner, 10 kilograms polyvinyl alcohol and 200 kilograms TH-928 polycarboxylate high performance water-reducing agent are added in the reactor successively, and stirred 2 hours; At last, go out still, can make the ground solidifying agent.
Embodiment three:
At first, in reactor, add 350 kilograms water after, open reactor; Secondly, 200 kilograms iron(ic) chloride and 70 kilo sulfuric acid potassium are added in the reactor successively, and stirred 30 minutes; Again, 150 kilograms the vitriol oils are added in the reactor lentamente, and stirred 30 minutes; Then, the FC-4430 fluorocarbon surfactant of 12 kilograms 3M companies, 48 kilograms trolamine, 80 kilograms aliphatic high-efficiency water reducing agent, 9 kilograms Sodium hexametaphosphate 99 and 53 kilograms TH-928 polycarboxylate high performance water-reducing agent are added in the reactor successively, and stirred 2 hours; At last, go out still, can make the ground solidifying agent.
Most of weathered rock and soil granule is electronegativity, is used as when building road foundation, and under the effect of pressure, the weathered rock and soil granule is close to certain distance, can produce mutual repulsive force, causes compactness to reduce, and forms capillary channel between the weathered rock and soil granule.Because the gap between the weathered rock and soil granule forms capillary channel, in summer, water is easy to invade roadbed, destroys that it is cementing, reduces subgrade strength, so that the impervious variation of roadbed; Winter, invade the water between the weathered rock and soil granule, produce the phenomenon of freezing, volumetric expansion occurs, cause road structure to destroy, so that the freeze-thaw resistance variation of roadbed.
In the ground solidifying agent with the ion of positive charge and weathered rock and soil particle generation chemical action with negative charge, its charging property is reduced, repulsive force significantly reduces between granule.When adding calcium ions and magnesium ions (lime, cement etc.) in the weathered rock and soil, low price ion in the ground solidifying agent and Ca, Mg ion exchange, calcium ions and magnesium ions is more evenly distributed, and centered by calcium ions and magnesium ions, produce chemical reaction, generate chemical bond, in weathered rock and soil, form firm reticulated structure, for improving subgrade strength good effect is arranged.
In above-mentioned chemical reaction, the former intermolecular crystal water of weathered rock and soil granule that is present in, some becomes weathered rock and soil granule surface sorption water as reactant, and original planar water is substituted away a part.Water in the unit volume has reduced, and the dry density of weathered rock and soil is increased, thereby improve compactness, reaches the requirement that improves subgrade strength.Because compactness improves, optimum dry density improves, and subgrade strength is improved.Chemical reaction occurs between the weathered rock and soil granule in roadbed after compacting, produce ettringite crystallization clump, stopped up capillary channel between granule, can't produce wicking action, water can't be invaded, thereby make roadbed have splendid water stability, well anti-soaking property in like manner also has good freeze-thaw resistance.
Fig. 2 is the manufacture method schematic flow sheet of road structure of the present invention.As shown in Figure 2, described manufacture method may further comprise the steps:
Step 20: the first auxiliary material is carried out fragmentation, and the particle diameter of the first auxiliary material after the fragmentation is less than 3 centimetres.
Described the first auxiliary material comprises one or several in excavation, mine tailing residue, drift-sand and the native horsestone of soil, discarded weathered rock and soil, urban architecture.
Step 21: will be the first auxiliary material of 80%~95%, the second auxiliary material of 3%~8%, 2%~17% water by weight percentage and account for the first auxiliary material and the ground solidifying agent of the second auxiliary material gross weight 0.01%~0.05% carries out uniform stirring.
Described the second auxiliary material comprises a kind of in lime, cement and the power plant desulfurization gypsum or two kinds.When the second auxiliary material only comprised lime, the add-on of lime accounted for 6%~8% of the road structure weight that makes at last; When the second auxiliary material only comprised cement, the add-on of cement accounted for 3%~6% of the road structure weight that makes at last; When the second auxiliary material only comprised power plant desulfurization gypsum, the add-on of power plant desulfurization gypsum accounted for 4%~7% of the road structure weight that makes at last.Described " by weight percentage " refers to " by the per-cent of the road structure weight that makes at last ".
Step 22: with the compound that stirs through paving, can obtaining road structure after leveling, compacting and the health.
The below minute four embodiment do further detailed description to the manufacture method of walling unit of the present invention.
Embodiment one:
To discard weathered rock and soil and carry out fragmentation, make the particle diameter of the discarded weathered rock and soil after the fragmentation less than 3 centimetres, be to add in discarded weathered rock and soil at 5: 95 cement by the weight ratio of itself and discarded weathered rock and soil again, natural moisture content according to discarded weathered rock and soil is 5%, if calculate in cement and the waste gas weathered rock and soil mixture and will reach optimum moisture content 11%, need then to add that to account for cement and waste gas weathered rock and soil mixture total weight amount be 6% the water yield, be 0.02% amount by accounting for cement and discarded weathered rock and soil gross weight then, the ground solidifying agent is added to the water, mix, above-mentioned several materials are stirred, the compound process that stirs is paved, leveling, can obtain road structure after compacting and the health, after 7 days, the unconfined compression strength that records road structure is 3.6 MPas in health.
Embodiment two:
Plain soil is carried out fragmentation, make the particle diameter of the element soil after the fragmentation less than 3 centimetres, be to add in plain soil at 6: 94 lime by its weight ratio with element soil again, natural moisture content according to element soil is 12%, if calculate in element soil and the lime mixture and will reach optimum moisture content 16%, need then to add that to account for element soil and lime mixture gross weight be 4% the water yield, be 0.02% amount by accounting for lime and plain native gross weight then, the ground solidifying agent is added to the water, mix, above-mentioned several materials are stirred, the compound process that stirs is paved, leveling, can obtain road structure after compacting and the health, after 7 days, the unconfined compression strength that records road structure is 1.32 MPas in health.
Embodiment three:
Native horsestone is carried out fragmentation, make the particle diameter of the native horsestone after the fragmentation less than 3 centimetres, be to add in bury horsestone at 5: 5: 90 cement and lime by the weight ratio of itself and native horsestone again, natural moisture content according to native horsestone is 4%, if calculate cement, to reach optimum moisture content 9% in lime and the native horsestone mixture, then need to add and account for cement, lime and native horsestone mixture total weight amount are 5% the water yield, then by accounting for cement, lime and native horsestone gross weight are 0.02% amount, the ground solidifying agent is added to the water, stir, above-mentioned several materials are stirred, the compound process that stirs is paved, leveling, can obtain road structure after compacting and the health, after 7 days, the unconfined compression strength that records road structure is 2.7 MPas in health.
Embodiment four:
The phosphorus ore slag is carried out fragmentation, make the particle diameter of the phosphorus ore slag after the fragmentation less than 3 centimetres, be to add in phosphorus ore slag at 8: 92 power plant desulfurization gypsum by the weight ratio of itself and phosphorus ore slag again, natural moisture content according to the phosphorus ore slag is 13%, if calculate in slag and the power plant desulfurization gypsum mixture and will reach optimum moisture content 19%, need then to add that to account for slag and power plant desulfurization gypsum gross weight be 5% the water yield, be 0.02% amount by accounting for power plant's gypsum and phosphorus ore slag gross weight then, the ground solidifying agent is added to the water, stir, above-mentioned several materials are stirred, the compound process that stirs is paved, leveling, can obtain road structure after compacting and the health, after 7 days, the unconfined compression strength that records road structure is 2.5 MPas in health.
The present invention adopts the ground solidifying agent, be used for the road foundation construction, has following characteristics: can be widely used discarded weathered rock and soil, the raw materials such as the excavation of urban architecture, mill tailings, native horsestone, substitute two-ash broken stones and the steady rubble of water, reduce the environmental disruption of cutting into a mountain for quarrying, rationally utilized rejected material, saved the cost of building the road.At the scene in the construction, all kinds of decayed racks (containing soil) or mine tailings are crushed to below 3 centimetres, add 6%~8% lime or 3%~6% cement, calculate the water of required adding according to its optimum moisture content, the ground solidifying agent of above-mentioned materials gross weight 0.01%~0.05% is added to the water, even with decayed rack (containing soil) or the common mix of mine tailings, lime or cement, through paving, leveling, the operations such as compacting can reach requirement of strength through after the health.
Per 1 ton of ground solidifying agent can substitute 400 tons of lime or 200 tons of cement, 1 ton of lime of every production will produce 0.8 ton of carbonic acid gas, therefore, ground solidifying agent per ton can reduce by 320 tons of Carbon emissions, has good Social benefit and economic benefit for reducing the great amount of carbon dioxide discharging that produces in lime and the cement production process.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.