PRODUCTS
Heavy-duty multifunctional rebar spacer designed to secure 25 mm, 30 mm, 35 mm and 40 mm protective layers, compatible with rebar diameter from 4 mm and up to 28 mm. Delivered in carton boxes, packing quantity is 500 pieces, weight of one box is 7 kg.
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50% post-consumer recycled content by product weight
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Demonstration of 200 kg point load applied to Type 1 spacer by rebar installed to provide 30mm cover height (protective layer)
Legoplast Plastic Manufacturing uses mechanically recycled Polypropylene (PP) in its product manufacturing. This material significantly reduces the carbon footprint compared to virgin polypropylene. Studies indicate that this process can cut greenhouse gas emissions by up to 80%, primarily by eliminating the energy-intensive production associated with virgin plastic.
The adoption of recycled polypropylene promotes sustainable manufacturing practices within the construction industry. Unlike traditional materials such as concrete, which have a high carbon footprint due to cement production, Legoplast's heavy-duty 4-in-1 plastic spacers offer an environmentally friendly alternative. Construction companies in the UAE and GCC contributes to reducing their projects' environmental impact by using Legoplast spacers instead of the commonly used concrete cover blocks.
Environmental Product Declaration
Installation guide
Our 4-in-1 heavy-duty spacers have been meticulously designed to optimize concrete flowability. By ensuring that cement and aggregate thoroughly envelop the spacer from all angles, we create a cohesive, integrated structure with dependable bonding performance.
To validate this bonding, two pull-out tests were conducted. Legoplast plastic rebar spacers equipped with a pulling system were positioned within the formwork, cast with concrete, and allowed to cure for a period of 7 days and 28 days. Subsequently, the pull-out test was executed. Under load application, the pulling frame with 7 days concrete sample has fractured at 33.4 kN of applied force, while the pulling frame with 28 days concrete sample fractured at 35.98 kN. Notably, no debonding occurred between the concrete and the plastic rebar spacer in both samples.
Concrete Bonding (Pull-Out) Test 7 Days
Concrete Bonding (Pull-Out) Test 28 Days
Design drawings for Type 1 spacer
In this study, we investigated the castability of the C40 grade concrete (Ordinary Portland Cement) and 20mm aggregate mix when utilizing Legoplast plastic rebar spacers.
Four Type 1 rebar spacers were embedded in concrete cubes composed of a concrete and aggregate mix commonly used for superstructure slabs (C40/20 OPC with 66% GGBS content).
After curing for 28 days, all four cubes were vertically cut and examined. Notably, no voids or cavities were observed either below or above the plastic rebar spacer. This result highlights the ease of concrete penetration around the spacer, even in the presence of 20mm aggregate.
Flowability study
Legoplast Plastic Manufacturing's facilities are situated in the Jabal Ali Industrial First area of Dubai, United Arab Emirates.
At Legoplast Plastic Manufacturing, we utilize the injection molding process to create plastic rebar spacers from recycled raw materials. This efficient process involves melting plastic pellets and injecting them into molds, resulting in high-quality parts. Notably, our zero-waste approach ensures that scrapped items and raw material offcuts are shredded and reused as recycled materials.
