Shandong Jining soil stabilizer

Soil stabilizer - In-situ solidification, point earth into gold, energy saving and environmental protection, road embankment construction and new materials, the most economical way road I. Introduction 1, the product uses soil stabilizer is a new high-tech environmental protection road building materials, direct effect on the soil, the soil cured in situ. In a wide range of low-cost distribution "soil" as the main raw material, it can replace a stable gravel, lime and flyash and other traditional road building materials; suitable for municipal roads, highways, plant roads, sidewalks, rural roads, airport runways and each roadbed Foundation seed treatment construction site. 2. Physical and chemical characteristics Physical state: liquid soluble in water Stability: long-term storage and transport under normal conditions Risk phrases: Do not swallow and inhale, gets into the eyes, rinse immediately with plenty of water and taken to hospital. Toxicity: non-toxic, harmless, non-corrosive, non-polluting ignition point: Do not burn 3, range ① roadbed construction. Bottom highway grassroots sclerosis, a road and below grade road base and subbase sclerosis. Easy road base and surface hardening or temporary road. Suitable for all types of soil: silt soil; clay soil; laterite soil; loess soil; soil weathering soil; sandy soil; crushed gravel soil; sandy soil soil; fine grained soils and soil. ② site hardening. A consolidation of land, parking, stockyard, pile yard, processing plants and other sites producing hardened. ③ construction of rammed earth wall. Such as rammed earth wall vegetable greenhouses, breeding shed rammed earth wall, rammed earth wall houses, luxury villas rammed earth wall, rammed earth walls Villa Club Resort, rammed earth walls landscape, repair Earthen construction, rammed earth walls and rammed location film base, Rammed earth bunkers towers and the like. ④ make unburned clay. ⑤ water conservancy dam / artificial lake / cofferdam curing seepage. ⑥ mine / oil cured seepage. ⑦ mine backfill / landfill. ⑧ tailings treatment. 4, Product Category type Amount (%) Features Ⅰ type 0.01-0.02 adding a small amount of cementing material, suitable for use in a variety of soil and hydrological characteristics of the region, good water stability, high compressive strength. Type Ⅱ 0.01-0.02 without adding cement materials, low cost, low construction program. Suitable for use in lime and cement prices high, dry and low groundwater areas. Ⅲ type 0.01-0.02 special sand, add a small amount of cementing material, suitable for use in many areas the soil less sand desert, flood and so on. Second, the product performance 1, enhance road performance to improve the compressive strength of 1.1: soil stabilizer can improve the density of the soil, after being compacted, the compressive strength than the same amount compared to conventional materials can be increased by 40-200%, can be The construction site of any soil processed into solid durable, flexible foundation, so that the road surface with superior carrying capacity. (Compressive strength experimental results are shown in Table 1-1,2,3,4) 1.2 increase water stability: Due to its unique mechanism of action, reduce soil due to the expansion and contraction caused by changes in humidity. Soil water repellency becomes hydrophilic, so the soil is permanently cured of it, we have an indoor test specimens and the test road core specimens were flooded 180d and 1-year observation, no bulk solution phenomenon, and less strength loss, thus described, the soil stabilizer treated solidified soil has good water stability. (Water stability test results in Table 2) 1.3 increase freeze stability: Due to the stabilized soil good water resistance, thus greatly improving its resistance to freezing and thawing. Stabilized soil at a low temperature (0 ℃ or less) than the absolute value of temperature shrinkage limestone soil, two lime smaller, therefore, good frost resistance. (Low shrinkage results in Table 3) 1.4 to improve the overall quality: a large number of experiments show that soil stabilizer treated soil, its strength, density, resilient modulus, deflection value, CBR (California Bearing Ratio, truck ratio), shear strength and so meet and exceed the acceptance criteria for roadbed material, thus extending the life of the road. 2, to reduce road construction costs 2.1 stabilized soil replace a large number of traditional road base material, and widely distributed soil, cheap, thus greatly reducing the cost of road construction. Compared with the traditional road base year to reduce costs by 15% -40%. 2.2 can make the best, without adding expensive soil replacement costs. Not a lot of shipping materials, thus saving a lot of transport and labor costs. 3, energy saving, environmentally friendly traditional road materials extraction, processing, transportation, storage and use, resulting in a lot of mountains and vegetation destruction, soil erosion waste a lot of coal and oil, release large amounts of CO2 increase the greenhouse effect. The growing shortage of natural road building materials, road construction costs increased every year, exacerbated by lack of project investment and the rising cost of contradictions. Soil stabilizer non-toxic, harmless, non-polluting, can effectively solve the problem of pollution of road materials; widely distributed in natural soil and inexpensive as the basic material, instead of the traditional road materials, thus reducing the economic cost of road construction and environment benefit is particularly evident. Third, the technical data 1. unconfined compressive strength test results of cemented materials: Ⅲ grade lime and 32.5 ordinary portland cement. With different ratios of different ages unconfined compressive strength test specimen compaction degree of 98%, a total of 144 specimens into the group, the thermostat (20 ± 1 ℃) health. Test results were as follows: Table 1-1 lime solidifying soil unconfined compressive strength test results mix ratio (%) unconfined compressive strength (Mpa) lime: soil curing agent 7d 28d 90d 4: 96 0 0.61 0.84 0.98 0.01 1.02 1.22 1.54 0.015 1.16 1.73 2.07 five ninety-five 0 0.74 0.94 1.12 0.01 1.14 1.92 2.6 0.015 1.26 2.4 2.9 six ninety-four 0 0.82 1.06 1.23 0.015 1.48 2.97 0.02 1.94 2.3 2.6 3.44 Table 1-2 solidifying sand lime unconfined Mix limit compressive strength test results without side compressive strength (Mpa) lime: sand curing agent 7d 28d 90d 3: 97 0 0.53 0.74 0.98 0.01 0.90 1.20 2.51 0.015 1.06 1.31 2.70 5: 95 0 0.74 0.94 1.12 0.01 1.04 1.72 2.63 1.17 2.11 0.015 2.79 six ninety-four 0 0.82 1.06 1.32 0.01 1.09 2.23 2.67 0.015 1.48 2.97 The data in Table 2.3 to see: Use of Soil Stabilizer stabilized soil compared with lime soil, the unconfined compressive strength doubled more. From the data, some of the pre-incorporation of lime (7 days) of compressive strength, but does not influence the late strength, post-impact strength by incorporation of curing agents, curing agents described the role of soil is obvious. Table 1-3 cement solidifying soil unconfined compressive strength test results mix ratio (%) unconfined compressive strength (Mpa) cement: soil curing agent 7d 28d 90d 4: 96 0 0.80 0.98 1.17 0.01 1.14 1.59 2.30 0.015 1.32 1.71 2.79 five ninety-five 0 0.94 1.14 1.38 0.01 1.91 2.65 3.59 0.015 1.91 3.05 4.11 six ninety-four 0 1.22 1.56 2.77 0.01 1.87 2.93 4.14 0.015 2.10 3.05 4.36 Table 1-4 cement solidifying sand unconfined compressive strength test Results mix ratio (%) 90d unconfined compressive strength (Mpa) cement: sand curing agent 7d 28d 90d 4: 96 0 0.57 0.74 1.06 0.01 0.62 0.94 2.07 0.015 0.67 1.13 2.23 5: 95 0 0.74 0.94 1.12 0.01 1.04 2.19 3.06 1.69 2.51 0.015 3.18 six ninety-four 0 0.82 1.06 1.32 0.01 1.37 2.83 3.77 0.015 1.76 3.04 4.11 From the data, the amount of cement is less than 5%, the curing agent is incorporated in an amount of 0.015% for the best value, add the amount of cement in 5%, the curing agent is incorporated in an amount of 0.01% and 0.015%, the difference is not great. Therefore see that the curing agent incorporation is not the better, particularly when construction curing agent to find the best value by incorporation experiments. For sand, cement lime superior class, curing agent incorporation also slightly smaller. 2, water stability test results in Table 2 Curing water stability test results mix ratio (%) curing agent (%) of saturated compressive strength (Mpa) Dry compressive strength (Mpa) water stability coefficient ( %) 7d 28d 90d 7d 28d 90d 7d 28d 90d lime: soil six ninety-four 0.02 1.28 2.3 2.97 1.54 2.51 3.11 83.8 91.6 95.4 0.74 0.94 0 1.22 1.34 1.12 1.2 83.6 61.7 77 cement: soil six ninety-four 0.02 2.67 3.43 4.44 3.02 3.67 4.56 88.4 93.4 97.3 0 2.3 2.7 3.9 2.8 3.1 4.3 82.1 87.1 90.7 water stability factor is not age compressive strength of the ratio of water to dry compressive strength of full representation, the greater the coefficient, the water stability as possible. Seen from the data in the table: soil stabilizer can greatly improve the stability of the stabilized soil water, while the specimen with the growth of age, the water stability coefficient increases. Test time: March 4, 2008 start, ending June 3. Fourth, the mechanism 1, soil mixing soil stabilizer and contains some moisture, the formation of crystals in the soil mesh, interspersed gaps between soil particles form the strength of the skeleton. 2, composition and soil particles Soil Stabilizer participate in chemical reactions, stimulate the soil to form insoluble substance itself hard substance, filling in skeleton strength in order that the formation of stabilized soil irreversible solid plate, and has good durability . 3, the curing agent solution charged ions can change the soil particle surface electrical resistance, lower water film thickness of the soil particles, improve adhesive force between soil particles, increasing the density, reduce water seepage. 4. The role of soil after crushing, mixing and compaction and other physical forces, and soil particles close to each other, thereby reducing the gap to be solidified soil, compacting further curing system, which has a strong bearing capacity and waterproof. Fifth, usage and dosage 1, using the procedures soil stabilizer and conventional road construction methods and machinery no big difference (for details see "Soil Stabilizer construction program"). When the intention of using soil stabilizer, I will assist in the use of units for construction soil analysis, can be construction made with soil to our company lab, or sent out by our technical staff to experimental conditions the construction site, the construction with soil carried out analysis to determine the best programs and the best ratio of curing agent and other construction program mix in order to achieve the best performance and lowest cost. After determining the construction, my company sent technical personnel on-site guidance. 2, the use of calculation Table 3 Soil Stabilizer general scale soil conditions with a curing agent mixing ratio (mass ratio%) curing agent (t) mass (t) dry density (t / m3) Volume (m3) 10000 1.86 5376 0.01 -0.02 1-2 This form is for use by normal dosage, adjust the amount of curing agent and cement for construction in accordance with the nature of the soil and the dry density size. 2.1 Quality ratio calculation method: According to (soil + cement quality materials and) calculation, the amount of curing agent is 0.01-0.02% (millionth - parts per million), the amount of cementitious material is typically 3-6 %. 2.2 volume ratio calculation method: Find the dry density of soil mixtures, in terms of volume, the amount of curing agent can obtain a unit of volume. Example: Calculate the width 10m, thickness 0.15m, the amount of curing agent per kilometer. 10m × 0.15m × 1000m = 1500m3 × 1.8 t / m3 (mixed soil dry density) = 2700t × 0.01% = 0.27t. This section obtained curing agent per kilometer 0.27 tons. Six 1-benefit analysis, economic analysis 1.1 to widespread and inexpensive "soil" as the main raw material, instead of the traditional road building materials, saving material costs; you do not excavation, soil transportation abandon the existing pavement design, but local materials cured, saving a lot of transportation costs and labor costs; compared to traditional road construction materials and processes, can reduce the cost of about 40%. 1.2 Save stockyard temporary land acquisition costs. 1.3 due to good water stability, solve the flooding problem, an overall reduction embankment height, can save a lot of labor, time, earth, sand, cement, lime and other materials. Even after the entire area surrounding the road along the highway can reduce the height, this indirect economic benefits incalculable. 1.4 to reduce damage to the surrounding roads. Mass transport sand, cement, lime and other materials, resulting in damage to the existing road, in many areas there is "a new way to repair bad three old" argument; in addition, is likely to cause damage to some of the facilities along the transport in the transport process, there The huge amount of compensation, even lawsuits were also a lot of people. Solidified soil can effectively solve this problem, the economic benefits are also difficult to estimate. 2, the environmental benefits of conservation of energy and resources 2.1 sand, cement and lime, cement and lime processing of coal, transportation fuel are all non-renewable resources, resource conservation, rational exploitation is a major event for the benefit of mankind. Reduced by the amount of 10,000 tons of lime, limestone save 18,000 tons, saving about 3,000 tons of coal; reduced by the amount of 10,000 tons of cement, limestone save 12,000 tons of coal saved approximately 2400 tons; reduction of 10,000 cubic meters per material Motor Transport ( 200 km), saving approximately 70 tons of fuel oil. 2.2 ecological and environmental protection in favor of traditional materials extraction, processing, transportation process resulting in the destruction of a lot of mountains, vegetation is destroyed, and thus non-renewable, resulting in a lot of CO2 and other greenhouse gas emissions. Authoritative data: reduce 10,000 tons of lime per use, can reduce CO2 emissions by 8,000 tons of gas; reduced by the amount of 10,000 tons of cement, would reduce CO2 emissions by 5,200 tons of gas; reduced by 10,000 cubic meters of gravel The amount, enabling about 300 square meters of vegetation protection, soil stabilizer polluting, non-toxic, harmless, can effectively solve the problem of pollution road building materials, while reducing the traditional materials extraction, processing, dust pollution generated during transportation. 3, ease social conflicts 3.1 It is understood that lack of funds and the road construction costs increased, due to enhanced environmental protection, road building material prices rose significantly, exacerbated by inadequate and contradictory increased cost of capital, and some parts of the road material shortage , also has affected the normal road construction. Traditional materials price instability, after some successful road suppliers unprofitable, shoddy phenomenon is inevitable, resulting in decreased quality of the project, there have even abandoned standard, resulting in a lot of road delay the construction period, which is becoming increasingly scarce natural resources, road building materials the inevitable social conflicts, and cheap synthetic soil stabilizer road technology relative price stability, which can effectively alleviate the social contradictions. 3.2 ease of highway construction and ecological protection contradictory Ministry of Transportation explicit requirements: First, insist on highway construction harmony between man and nature, and establish respect for nature, the concept of environmental protection, environmental protection and strive to build the road, the road of landscape, ecology road; the second is adhere to sustainable development, and foster the concept of resource conservation. Highway construction must not be wasted land, destruction of resources at the expense of the environment. Use of synthetic soil stabilizer is an urgent need not only road of sustainable development, but also a great contribution to the protection of the human environment. 3.3 powerful demonstration effect actively promote and encourage the application of new technologies, with a strong typical demonstration and effects. For enhanced throughout the transport sector on the traditional road construction techniques, and then understanding the material, the application of new technology, new materials urgency, a sense of mission, a sense of crisis will be of great help. For correct simple and one-sided project cost accounting and comparison method, and road construction in the environment is priceless, low-cost method of accounting resources and energy simple project cost, the resources and the environment included in the project cost trade-offs, insist on full accounting highway project has a positive effect. The national energy saving policy and the Ministry of Construction saving and environment-friendly road and the road of sustainable development policies and implementation of powerful advocate, to get rid of the concept of the beaten track, with the development perspective of things, positive acceptance of new things there is a strong demonstration leading role.