一、Product Introduction

Local solidification admixture is a soil solidification admixture developed specifically for the different characteristics of various soils in China, which can improve the compaction performance of various soils to meet engineering requirements; Improve soil water stability, increase soil compaction, and enhance strength; Improve durability; Partially or completely replacing traditional improved materials such as cement and lime, energy-saving and environmentally friendly. Mainly used in highway construction, industrial and civil construction venues, airport runways and pavements, railway construction, slope embankments, yard reinforcement construction, etc.

The soil solidification construction mainly relies on intelligent mechanized construction, which has high construction efficiency, convenient construction, and low cost, and can greatly reduce the cost of excavating and transporting waste soil. After soil solidification, it has excellent properties such as high strength, good durability, and environmental protection.

二、Technical Parameter

Basic performance item	Compressive strength (MPa)	Water stability	Curing time	compactness
Solid stabilized soil	15≧Ra≧0.4	≥0.75	1～3天	≥95%

三、Main characteristics

Fully utilize engineering waste, construction debris, reduced soil from construction solid waste, and other soil sources to reduce the external transportation of debris;

Reduce the amount of soil and sand used in remote engineering projects, avoid mountain excavation and stone extraction, and protect the environment;

Can effectively utilize construction waste and industrial waste residue;

Non toxic, harmless, and pollution-free;

The construction process is few and mainly mechanized, with high construction efficiency, simple construction, and low cost;

The construction method can handle both in-situ processing and centralized processing.

四、Application scope

Compaction and backfilling of structures such as foundation pits, retaining walls, abutments, culverts, and cushion layers;

Roadbeds, subgrades (middle and lower base layers), functional layers, etc. of various levels of roads;

Pile soil composite foundation;  

Soft soil foundation and compacted fill foundation;

Backfilling of municipal pipeline network and pipe gallery trenches, as well as industrial and civil construction trenches;

High embankment (similar to high fill engineering).

五、Precautions

Pre treatment should be carried out before soil use to remove debris and large particles of soil (stone) with a particle size greater than 26.5mm. Oversized soil materials should be used after crushing. The organic matter content shall not exceed 5% and shall not be mixed with toxic and harmful substances;

The physical indicators of the curing agent should meet the requirements of CJ/T 486-2015 Soil Curing Admixtures. Process indicators: The flowability, initial setting time, and final setting time of the slurry should meet the requirements of relevant specifications; Before using other additives, adaptability tests should be conducted to confirm their effectiveness;

The performance indicators such as compressive strength and compactness of solidified soil should be determined according to the design and construction requirements of the filling project;

The target value for compressive strength of solidified soil in mix design should not be less than 1.2-1.3 times the design strength value;

The mix proportion of solidified soil used for the first time should be subjected to initial evaluation.

六、Usage and application

Excavation: Excavate and transport the soil to the mixing yard using excavators and engineering transport vehicles;

Pre mixed crushing and curing agent: A large-scale continuous filling crushing and mixing machine is used for crushing and mixing, while adding curing agent. The mixing time is about 3-5 minutes;

Flow state solidified soil filling and pouring: The mixed flow state solidified soil is transported and filled using a large filling pump in an integrated machine, with a filling distance of up to 3km and a maximum filling speed of up to 100 cubic meters per hour. Combined with appropriate vibration, the quality is better;

A pre mixed mixing plant can be established and transported by concrete tankers;

The testing strength of solidified soil must meet the design requirements;

Under normal storage conditions, the storage period is 90 days. If it exceeds 90 days, it must be verified through testing before use.

This product is based on the standard CJ/T 526-2018 "Soft Soil Curing Agents" CJ/T 486-2015 "Soil Curing Admixtures"