Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Roadbed construction technology with ardealite improved expansive soil
The invention provides a roadbed construction technology with improved ardealite. The technology comprises the specific steps that the ardealite is taken, expansive soil is added and stirred evenly under the situation of the appropriate moisture content, and the mixture of the ardealite and the expansive soil is obtained; Nanjing red sand is added in the stirred mixture of the ardealite and the expansive soil under the condition of the normal temperature, material stuffiness is carried out for 10-12 hours, and stirring is carried out under the condition that the moisture content is controlled within 16%; the lay-down thickness of each layer of the mixture of the ardealite and the expansive soil is not larger than 30 cm, and paving is carried out through a dust paving machine; the paved roadbed is rolled; moisture preserving and maintaining are carried out on the rolled improved roadbed, and the roadbed construction technology can be finished after maintaining is carried out for about seven days. By means of the method, in the construction process, the raise dust is little, and the pollution to the surrounding environment and the threat to the body health of constructors can be reduced. Due to the fact that the Nanjing red sand has high adhesiveness, after the Nanjing red sand is mixed with the ardealite and the expansive soil, the ardealite and the expansive soil can be effectively bonded, and the strength of the ardealite and the expansive soil is increased.
Roadbed construction technology with ardealite improved expansive soil
The invention provides a roadbed construction technology with improved ardealite. The technology comprises the specific steps that the ardealite is taken, expansive soil is added and stirred evenly under the situation of the appropriate moisture content, and the mixture of the ardealite and the expansive soil is obtained; Nanjing red sand is added in the stirred mixture of the ardealite and the expansive soil under the condition of the normal temperature, material stuffiness is carried out for 10-12 hours, and stirring is carried out under the condition that the moisture content is controlled within 16%; the lay-down thickness of each layer of the mixture of the ardealite and the expansive soil is not larger than 30 cm, and paving is carried out through a dust paving machine; the paved roadbed is rolled; moisture preserving and maintaining are carried out on the rolled improved roadbed, and the roadbed construction technology can be finished after maintaining is carried out for about seven days. By means of the method, in the construction process, the raise dust is little, and the pollution to the surrounding environment and the threat to the body health of constructors can be reduced. Due to the fact that the Nanjing red sand has high adhesiveness, after the Nanjing red sand is mixed with the ardealite and the expansive soil, the ardealite and the expansive soil can be effectively bonded, and the strength of the ardealite and the expansive soil is increased.
Roadbed construction technology with ardealite improved expansive soil
YANG JUN (Autor:in) / ZHANG GUODONG (Autor:in) / TANG YUNWEI (Autor:in) / TONG LEI (Autor:in) / ZOU LIN (Autor:in)
23.09.2015
Patent
Elektronische Ressource
Englisch
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