The soil in my region is clay and we have problem in stability of it, so I want to do this research and see what the result of it. So, could tell about any practical procedure for doing that.
If soil texture is clay, mixed with sand and organic matter for better results
Clay or other finegrade cohesive soil can be stabilised by mixing with lime (quicklime or dry hydrate) or with cement. For the procedure of mixing there are different methods: for mixing at grade simply by ploughing, better with rotary soil mixer. For stabilising in deep there are vertical soilmixer and mixing by high presuure injection and other methods. You can find a lot of literature about this topic under: "soil stabilisation", "deep soil mixing" etc.
I agree with Mr. Wilmers. I would only add another popular soil method for soil stabilization - using fly ash, which is very cheap and can have good cementing properties.
Thank you for your answers,
If I add the crushed used concrete to soil with some quantity of cement, are this improve the properties of soil. What tests I need to find to measure the stability of soil?
The usual method to test the stability is mixing of soil with stabiliser, compact it in a Proctor- or CBR-mould, give the mixture 8 days time ore more to react und test the compressive strenght. Crushed concrete can have puzzolanic ability, the finer the better. So the fines of crushed concrete may act as stabiliser. The bigger particles act more by enhancing the soil granulometric gradation - but that demands more than perhaps 80% of concrete and the rest clay. The efficiency of bettering the gradation can be tested by CBR-test.
Thank you very for your answer. but, could I ask you another one? could I use different proportion of bigger particle of crushed concrete and cement paste.
I would make different mixtures with clay and for instance 30%, 40% 50%, 60%, 70%, 80%, 90% of bigger particles and test the efficiency by CBR-Test. Than with the best mixture and two adjacent mixtures i would test the effect of cement or cement paste by adding it to the clay-aggregate-mixture. Perhaps the quantity of cement should be tested by mixtures with different quantities of cement with the best clay-aggregate mixture. A lot of work. Wish a good success.
I agree with Mr. Wilmers. I would recommend that you always use CBR test to check soil stabilization success, and not just unconfined compressive strength (UCS) test.
Thank you very much. I hope to complete my work at this period. Would you kindly advise me about publishing this work as a research.
- Badges
- Science topic
- Similar topics
- Agriculture
- Soil Science