Difference between cement stabilized macadam and cement stabilized soil
Manuscript | Yang Guangwei Editor | Nie Audi Review | Huo Shaobo Jiaxi Highway Section 3 Central Laboratory Blends the World and Builds Boundless.
.
During the construction of road mixing method, measures shall be taken to drain the water on the surface of the lower bearing layer, so as not to make the aggregate transported to the road too wet.
The differences between cement-stabilized macadam and cement-stabilized soil are as follows: 1.
It includes not only stabilizing various fine-grained soil with cement, but also stabilizing various medium-grained soil and coarse-grained soil with cement.
2.
Coarse grained soil: the maximum particle size is less than 37.5mm, and the content of particles less than 31.5mm is not less than 90% (such as sand gravel, gravel soil, graded gravel, graded gravel, etc.).
The soil used for cement stabilized layer in highway engineering is generally divided into the following three types according to the particle size and composition of the particles (including gravel, gravel, sand particles, excluding soil blocks and soil masses) in the soil: fine-grained soil: the maximum particle size is less than 9.5mm, and the content of particles smaller than 2.36mm is not less than 90% (such as various cohesive soil, silty soil, sandy soil, sand and stone chips with different plasticity index).
Pay attention to the blue letters above and get the latest knowledge of the laboratory.
Cement stabilized macadam uses graded macadam as aggregate, uses a certain amount of cementitious material and sufficient mortar volume to fill the gap of the aggregate, and paves and compacts according to the principle of inlaying.
In areas with freezing, it should be completed half a month to one month before the first heavy freezing (- 3~- 5 ℃).
According to the provisions of the Technical Specifications for Construction of Highway Pavement Base Course issued by the Ministry of Communications, cement stabilized macadam is medium-grained soil.
Contact us: our services: third-party pile foundation testing, tunnel nondestructive testing, single beam static load testing, vertical prestress testing of finish rolled deformed steel bars, anchor rod pullout force testing, tunnel inverted arch coring, central laboratory, etc.
Construction shall be stopped, but the paved cement mixture shall be compacted as soon as possible.
WeChat: JX3BZXSYS Tel: 18392378555; Click the blue word “Central Laboratory of Section 3 of Kassi Highway” on the top to follow us.
Cement-stabilized soil is a broad name for the mixture obtained by using cement as binder.
The daily minimum temperature during the construction period should be above 5 ℃.
Construction of cement-stabilized soil structure layer: the construction of cement-stabilized soil structure layer should be organized in late spring and high temperature season.
Since cement and other cementitious materials are contained in the water stabilized macadam, the whole construction process is required to be completed before the final setting of cement and meet the quality standards at one time.
Second, stabilized materials: the general requirement for soil is that it is easy to break, meet certain grading, and easy to roll and form.
When constructing cement-stabilized soil, especially cement-soil structural layer in rainy season, special attention shall be paid to climate change to prevent the cement and mixture from being exposed to rain.
Medium grained soil: the maximum particle size is less than 26.5mm, and the content of particles less than 19.0mm is not less than 90% (such as sand gravel, gravel soil, graded gravel, graded gravel, etc.).
